Crystal System; Orthorhombic
Color: Colorless, white, gray, yellowish, reddish, green
Hardness: 3 1/2 - 4
Fracture: Subconchoidal, brittle
Specific Gravity: 2.9
Transparency: Transparent to translucent
Aragonite is commonly considered to have identical chemical compositions to the more common mineral calcite, which makes apart of the carbonate group. Aragonite rather forms in more limited geological environmental conditions, which makes it more of a calcium carbonate. Its rather commonly known as mineral that is relatively unstable and can also become altered to calcite. The difference between Aragonite and Calcite is that Aragonite belongs to the Orthorhombic crystal system, while calcite belongs to the trigonal crystal system. Many crystals of aragonite are considered to be often twinned that takes on a hexagonal appearance, but can also come in a single crystals that are often prismatic. In some cases, it may also be columnar, stalacititic, radiating, or even fibrous. It can also sometimes appear similar to calcite, aragonite is easily distinguished by the absence of rhombohedral cleavage. It can also be various colors that ranges from white, colorless, gray, yellowish green, blue, reddish, violet, or even brown in color.
Aragonite is mainly found in oxidized zones of ore deposits and elsewhere, that's formed at low temperatures near the surface of the Earth. It can also be found in caves as stalactites, that's formed around hot springs, and in mineral veins, which can also occur in coral-like aggregates in iron ore deposits that are associated with siderite. Aragonite is commonly also referred as flos ferri, which means flowers of iron. In some cases, its also the banded stalactitic material that is polished or as an ornamental stone, and transparent crystals are rarely faceted for collectors. Aragonite is also considered to be produced by biological processes yet to be fully understood. Facet quality crystals of Aragonite are typically found in Czech Republic, superb cave growths from Mexico, flos ferri from Austria, and Greece, with fine crystals coming from Morocco, England, France, Germany, Italy, Hungary, Japan, and numerous other localities in the U.S. It may also be discovered in some metamorphic and igneous rock types depending on the condition of the environment,
Aragonite rather has its own chemical formula that's commonly known as CaCo3, and is apart of the Orthorhombic crystal system. The mineral Aragonite it self is typically considered to have actually been named in 1797, from the main area it was discovered in (Molina de Aragon, in the province of Guadalajara, in Castilla La-Mancha, Spain. Its also considered to be thermodynamically unstable at temperature and pressures, and tends to also alter to calcite on scales 10 to 10 years.
Name: Tiger's Eye
Deposit Area - Unknown
Group: Silica- Silicon Dioxide
Color: Golden to Red Brown
Hardness: 5 1/2 - 6
Specific Gravity: 2.7
Tigers Eye - Quartz is also referred as Tiger's Eye, which is considered a semiprecious variety of quartz exhibiting chatoyancy, a vertical luminescent band like that's recognized as a cats eye. Unlike cat's eye quartz, tiger eye is form in a unique way as parallel veins of crocidolite (Blue Asbestos) fibers become altered to iron oxides and the replace by silica. From this result, it is commonly more opaque and has a rich yellow to brown color. When it becomes cut, the gem has fine lusters, in which the main production source of tigers eye is Griquatown West, in South Africa. Some other areas where it commonly be found can also included Western Austrailia. Another gem called Hawkeye is also similar to tigers eye except that the crocidolite is replaced by quartz without altering to an iron oxide, and it retains the gray blue of the original asbestos. Tiger's eye is rather considered as a metamorphic type of gem that has a golden to a red brown color. The semiprecious gem is rather considered to be composed of silicon dioxide which has a chemical formula of SiO2, and mainly colored by iron oxide.
This photo shows that the Crocidolite which is a blue asbestos is only semi oxide by the iron oxide stages as some can still be seen.
Petrified wood is commonly regarded as a special type of fossilization that mainly the remains of terrestrial vegetation, and can also be the remains of natural manufactured wood. The process of getting to this type of formation takes up to several years for it to be completely fossilized. Ongoing research by OntarioExplorations101 has notice that wood can actually fossilize in about 30 to 45 years depending on the size of it. Some petrified wood can also be dated to millions of years depending on the condition and if its not found by someone. This was notice on the basis of how mine wood can become fossilized to a point of pure rock which is taken from various minerals associated with that environment. One typical mine we focus on was the Kanichee Polymetallic Mine site as lots of wood was used in the making of this mine, and remains in fossilized state to this day. This also includes the process of also petrifying saw dust into another typical fossilization known as Petrified Saw Dust. These two forms of petrifying are known to also be built up of various or one type of mineral that usually petrified saw dust comes into contact with. The way this is commonly done is that all the organic type of minerals have rather been replace by minerals. Only one conclusion to this is how does treated/painted mine wood become petrified when its not all natural organics that come to its process of becoming lumber. it also depends on the size of the wood but smaller pieces like this one take approximately 30 to 45 years to form. By taking this smaller piece, you can actually construct the age pattern of that petrified wood from a much smaller scale
There are a number of different type of petrified wood that can include lumber is a typical one that can consist of Conifers and Angiosperm, and not least lumber on its own under specific conditions. Conifers are regarded as plants that can produce by the mean of an exposed seed, including all conifers that are known as gymnosperms. Conifers are considered as shrubs or trees that commonly produce woody cones of various shapes, and sizes. These leaves are often needle shaped but can also be flat and broad, which makes their woody trunks often rich in resin. Coniferous fossils can either be needles or leaves, cones, or even the wood it self. Once the wood becomes a fossil it is commonly now referred as petrified wood, and a large portion of fossilized petrified wood is also found in the Arizona Petrified Forest.
Angiosperm plants, comprise of nearly 250,000 living species, which had first appeared in the early cretaceous. although the oldest fossil remains from that time are limited to pollen grain. Some of the earliest angiosperm fossils are also commonly similar to most common types of herbaceous bush plants. It was also at the beginning of the Late Cretaceous time period, when woody angiosperm began to evolve including several modern groups, such as magnolia, laurel, sycamore, and rose families. In general, the woody angiosperm are typically known for having broad leaves which often become fossilized, but fossilized angiosperm wood is also difficult to distinguish from fossil conifers
The way that wood fossilizes is typically formed when a tree had died or fell, some were also deposited directly in river beds or on floodplains, while others were washed into the current area of the forest flood water. Most of the trees become decomposed, while others were buried in the accumulating sediments, that include a considerable amount of volcanic ash. At this point, the silica content of the ash became dissolved by the accumulation of ground water, and as it became percolated downward, it filled or had replace cell walls, as it crystallized as Chalcedony-cryptocrystalline quartz. From this crystallization the ground water would have also been iron rich which would combine with quartz or other sulfides during the petrification process, and had made a rainbow color of sulfides or color on its own. Eventually this had caused the petrified wood to be buried by accumulation of different sediments or rich minerals depending on the condition of the environment. Petrified wood at this stage can rather range in several different elements that cause it to form it natural colors due to the concentration of different chemical elements.
Group - Carbonate
Crystal System- Monoclinic
Chemical Composition - Cu3, (CO3),2 (OH)2
Form/Habit- Tubular, prismatic
Color - Azure to dark blue
Hardness - 3 1/2 to 4
Cleavage - Perfect
Fracture - Conchoidal, brittle
Luster - Vitreous, to dull, to earthy
Specific gravity: 3.8
Transparent- Transparent to translucent
Azurite is known as a deep blue copper carbonate, that forms either tubular or prismatic crystal, and has a wide verity of habits by carbonated water. In many cases, tubular crystals are known to commonly have wedged shaped terminations within the constituent of crystallization in Azurite. Azurite alone is known to rather form a rosette-shaped crystalline aggregate, or also occurs as massive Stalactitic, or comes in a botryodial form. Some of the well developed crystals are known to be dark azure blue, in which massive or earthly aggregates may be paler. Azurite is commonly identified as a secondary mineral within the oxidized portions of a copper deposit. All carbonates are also known to contain CO3, as the basic compositional and structural unit. The foremost part in carbonates is that it contains a carbon atom in the center, in which gives the rise to the trigonal symmetry of many carbon minerals. The basic unit alone is known to also be joined by one or more sediments, such as calcium, sodium, aluminum, manganese, barium, zinc, and copper. Some places where fine Azurite crystals are produce include Utah, Arizona, New Mexico, France, Mexico, Chile, Russia, Australia, Tsumeb, Namibia, and Morocco. Massive Azurite is known to commonly occur in Canada, India, Pakistan, and Washington.
__ __Primary Minerals________________________ Secondary Minerals_____________
Copper = (Primary Mineral) can = Secondary Minerals Azurite
Rock type : Felsic, igneous, and plutonic
Major Minerals: Potassium,-Feldspar, quartz, mica, sodium
Minor Minerals: Sodium, Plagioclase, Hornblende
Color: White, Light grey, grey, pink red
Granite is the most common mineral within the earth continental crust, and is in many cases pink, black, gray, and white in color. For the most part granite is rather known as a rock that's coarse to medium grained. Its also known as a mineral that's made up of three main groups of mineral types that are known as feldspar, quartz, and mica. These three most important minerals types are commonly known to occur as dark biotite, or silvery Muscovite. In many cases its rather the feldspar that predominates the group, with quartz accounting for 10% within its formation. Alkali feldspar is also known to occur often as pink but can range in many colors from white, buff, to a gray color, resulting in pink granite used as an ornamental stone.
Another type of feldspar known as plagioclase is also considered to occur within the formation of Granite. Granite is also known to be made up of a ratio between Pagioclase, and Alkali Feldspar. But if the Pagioclase exceeds the Alkali, than it becomes another mineral type known as granodiorite. In several cases pagioclase feldspar is known to occur in low quantities within Central, Eastern, and Southwestern United State, Southwest England, Baltic Shield area, western, and central France, and Spain. For the most part pagioclase feldspar is known to largely exceed alkali within a large portion of western United States. Much of the granite formations within western united states are commonly known to be a part of a great series of batholiths. These are rather huge rock masses in which are often hundreds. and thousands of square miles in area. More so these rock types are considered to also stretch from Alaska and British Columbia,which extend southward towards Idaho, and California, and into Mexico. Granite is also known to carry minor amounts of amphiboles, and pyroxenes, which are the essential minerals in granite, and may also occur as accessories.
Much of the formation of granite is known to commonly be formed by a crystallization process from silica rich magmas. These silica rich magmas are rather known to occur several mines within the earths crust. Granite is largely known to be mainly formed at depth, and the exposure of granite on the surface is evidence that the area has been uplifted. This also determines that the great thickness of rock overlying the granite has also been eroded away. More so its also strongly reported that the crystallization of granite is known to hold important mineral deposits that are formed in vicinity of crystallizing granite bodies. Much of its formation is mainly formed from hydrothermal solutions which are released by them. Many different types of minerals that include pagmatite gemstones such as topaz, rock crystals, tourmaline, aquamarines, and metallic ores such as gold, silver, lead, and titanium, are formed from these solutions.
At one point in time it was rather stated that quarrying for granite was a big industry due to the demand for its use as a building stone Now a days granite is rather being used less from its previous years, and is strongly used a vaneer for commercial buildings, and for the making of kitchen counter tops. Other countries around the world are also known to quarry granite to this day as its widely used as a curb stone. Granite is also known as favorite stone for carving and building structures, and has been used widely for its strength, and durability. For the most part granite is also known to be apart of three properties known as felsic, plutonic, and igneous rock types. Granite is also known to occur largely with potassium-feldspar, quartz, mica, and sodium. Some of the minor minerals that make up granite are also known to included sodium-plagioclase, and hornblende.
Texture granite is commonly known to have distinct patterns, and are sometimes reffered as graphic granites. Graphic Granites are known to commonly consist of 30% quartz,and 70% feldspar, with a few other minor minerals. Its formation is rather intergrown with these minerals that make straight sided quartz crystals, which in some cases look like hieroglyphic characters set in the background of feldspar. In many cases this type of texture is strongly known to occur within pagmetite deposits when the main minerals are known to crystallize at the same time. Another type of granite known as orbicular granite is rather known as an unusual but spectacular granite containing spheres of concentric layers of granitic minerals. These orbicules are also known to be 2 to 4 inches in diameter, and are often richer than the granite in dark minerals. For the most part these minerals are usually restricted to small areas within a larger granite mass. One other type of granite known as porphyritic granite is known to compose of large crystals that are better formed than the surrounding mineral grains. They are also known as the type of granite that has been quarried, and polished in order to be used as ornamental, and building stones.
Other minerals where granite can occur includes stibnite, molybdenite, rutile, Gahnite, Cryolite, Monazite, Wavellite, and Riebeckite. Its also known to occur in many other rock types such as Pegmatite, Syenite, Diorite, Lamprophyre, Gneiss, Migmatite, Skarn, and Orthoquartzite. For the most part granite is also known to take its formation from phyllosilicate minerals such as Muscovite, Biotite, Illite, Apophyllite, and Prehnite. Granite can occur in zeolite mineral formations such as Natrolite, Heulandite, Chabazite, and analcime. Some of the feldspar minerals that can be associated with granite include Orthoclase, Microline, and Oligoclase. More areas where granite can occur is within cyclosillicates such as Cordierite, and Beryl minerals. Granite is also known to occur in nesosillicates that included Topaz, Andalusite, and Euclase minerals types.
The influence of increasing temperature on chemical systems that show partial solid solution at lower temperature. Much of the coloring also shows the pronounced increase in K <<< >>> Na substitution as a function of increasing temperature. Above about 650 C. a complete solid solution exists between Na+ and K+ up to the melting curves above 1100 C.
Group: Sillicates - tectosillicates
Crystal System - Triclinic
Color: White, pale yellow, light green to dark green
Form/Habit: short prismatic
Hardness: 6-6 1/2
Cleavage: Perfect or good
Fracture: Conchoidal to uneven, brittle
Luster: Vitreous, Dull
Specific Gravity: 2.6
Transparency: Transparent to translucent
In other terms Amazonite is known to be referred as Microcline which is commonly known as an Alkali Feldspar. Much of its crystal formations are known to commonly be tubular or short prismatic crystals, which are considered to be commonly twinned. In many cases amazonite is also strongly considered to be used within the ceramic industry, and also as a mild abrasive. For the most part Microcline is considered to be a type of feldspar mineral. In addition to this, it can also be colorless, white, creamy to pale yellow, salmon pink, to red or even dark green in colour. Many crystals formations in Amazonite are also commonly multiply twinned, that also have two sets of fine lines at right angles to each other. Much of the Microcline within Amazonite can also be formed in massive habits.
In many cases Microcline Amazonite can occur within a wide variety of formations such as feldspar rich rocks, that can included granite, syenite, and granodiorite. It can also be found in pegmatite's and metamorphic, such as gneisses, and schist. Microcline Amazonite is considered to be apart of the silicate feldspar group of minerals, with a chemical composition of KAISI3 O8, and has a hardness of 6-6 1/2. It also known to be one of two forms of Potassium, that may included either Aluminosilicate, and orthoclase. Like all minerals it strongly named by the Greek which means little, and lean, in which takes its name from the planes of its two cleavage directions.
In other terms Microcline Feldspar is considered to be the common type of feldspar in felsic rock types. Many specimens of feldspar are known to also be found in various parts of the world that included Italy, Baveno, Irkutsk, Canada, Russia, South Dakota, Mexico, and Mont St-Hilaire. Greenish-blue specimens of microcline are considered to be called Amazonstone or Amazonite, which is taken from the Amazon River where it was first discovered. Amazonite is insoluble in many acids except for hydrofluoric acids, which should be used with care, and is also infusible in flames.