Cart 0. Tremolite occurs as grey, green or lavender to pink stout elongated crystals, which form fibrous, granular or columnar aggregates. Tremolite: dark gray, elongated crystal Calcite: white matrix, scraped away w/ sharp object This is an interesting specimen of what appears to be dark gray tremolite {Ca 2 Mg 5 Si 8 O 22 (OH) 2}. Jul 24, 2019 - Tremolite Size: 4x10cm A lustrous, free standing, Tremolite crystal 10 cm. The Tremolite crystal segments are frozen the matrix skewed from their original position. It has a hardness of Mohs 5.0-6.0, an uneven fracture, a vitreous-to-silky luster, and a specific gravity of 2.9-3.1. long on Uvite. Sueno S , Cameron M , Papike J J , Prewitt C T , American Mineralogist , 58 (1973) p.649-664, The high temperature crystal chemistry of tremolite, T = 400 C . Tremolite forms by metamorphism of sediments rich in dolomite and quartz. ... Rutile Tremolite, or Mica is generally known as “Witches Finger”. Comments Tremolite can help stabilize nervousness and shaking. Green Tremolite. They are known as fine needle-like inclusions in quartz or emerald. Gray Gemstones & Minerals. 5 gr. Two incomplete, brown Zircon crystals ae on the edges. 7430. (The following is in reference to green tremolite): As with most green crystals, particularly of this brightness and clarity, tremolite is balancing and lifts the spirits. Metaphysical Properties . Sierra Leone: Cr-rich tremolite, deep green with Cr spectrum displayed. From a very recent find, the quality is superior to that generally known in the St. Lawrence County area. your own Pins on Pinterest Actinolite is often found associated with quartz, and Actinolite crystals make interesting collectors pieces. About Tremolite-Hexagonite Tremolite is rare and sought after by collectors. It is quite effective at balancing emotions and is a gentle diffuser of anxiety or depression. Sometimes called hexagonite, its crystal habit is actually monoclinic. The endmember hornblende tschermakite (☐Ca 2 (Mg 3 Al 2)(Si 6 Al 2)O 22 (OH) 2) is a calcium rich monoclinic amphibole mineral. Hardness: 5.5-6 Streak: White. Magical Workings: Tremolite is an excellent meditation stone, it helps one to maintain focus and to expand one's conciousness. Tremolite Formula [box]Ca 2 Mg 5 Si 8 O 22 (OH) 2 Crystal System Monoclinic Crystal Habit Columnar, Massive - Fibrous, Massive - Granular Cleavage Perfect, Distinct, None Luster Vitreous - Pearly Color brown, colorless, gray, white, light green Streak white Class Monoclinic - Prismatic Fracture Sub Conchoidal Hardness 5-6 . Tremolite was first discovered in Val Tremola, near St Gotthard in Switzerland. Crystal size: 2.8 x 1.3 x 0.5 cm Gem green terminated Tremolite crystal from the Tanzanite mines, from a new find with the best chrome green color. Vasco Trancoso collection and photo. Chatoyant Quartz: When quartz contains similarly-oriented fibrous inclusions, and is then appropriately-cut, in cabochon, curved stones display what is known as chatoyancy, meaning 'like a cat's eye.' Cleavage {110} perfect – intersect at 56 and 124 degrees. Old museum no. Colorful tremolites are much popular in other names like actinolite, hexagonite, cats eye and Tanzanian green crystals in the gemstone industry. Tremolite was named by Johann Georg Albrecht Hpfner in the year 1789 after the Tremola Valley of Switzerland from where the material came. This stone is an ancient mystical stone and can be very spiritual. Very large crystals of light gray tremolite occur a few meters west of the road near a maple sugar house on top of Hamilton Hill, about 1 km. The main crystal is an elongated prism, dull to bright green, with some gemmy areas. Main members – tremolite (Ca 2 (Mg 5.0-4.5 Fe 0.0-0.5 2 +) Si 8 O 22 (OH) 2), actinolite (Ca 2 (Mg 4.5-2.5 Fe 0.5-2.5 2 +) Si 8 O 22 (OH) 2). Introduction: This mineral is normally white in colour, but varies to pale green or pale grey. Fibrous Actinolite should be handled with care and never inhaled. Jade (Tremolite) Scientific Information: Tremolite is a calcium, magnesium and iron silicate.When the iron content is high, it is called actinolite. Witches Fingers are an unusual quartz crystal which includes Actinolite, Tremolite, Rutile and Mica all of which are included in the quartz crystal. It is sometimes called chrome Tremolite. Data courtesy of Webmineral. south of Russell. Some of the crystals are over a half meter long and 15 to 25 cm. Tremolite is used to stabilize bouts of nervousness and the shakes. Lelatemu,Tanzania: green facetable crystals up to 25mm. The tremolite seems to lie at or near the contact between a big pegmatite dike and Grenville pyritous gneiss. Featured in Min Record September/October 2009 issue. The most common color of tremolite is white but the colors may be green, brown, lavender or pink. Tremolite is a member of the amphibole group of silicate minerals with composition: Ca 2 (Mg 5.0-4.5 Fe 2+ 0.0-0.5)Si 8 O 22 (OH) 2.Tremolite forms by metamorphism of sediments rich in dolomite and quartz.Tremolite forms a series with actinolite and ferro-actinolite.Pure magnesium tremolite is creamy white, but the color grades to dark green with increasing iron content. Common Mineral Associations: Smaragdite is an emerald green variety of Actinolite. Crystal Structure: Mouse drag1 - LMB Manipulate Structure drag2 - RMB Resize/Rotate Keyboard S - Stereo Pair on/off H - Help Screen I - Data Info A - Atoms On/Off P - Polyhedra On/Off B - Bonds On/Off Help on Above. It is frequently synthesized along with its ternary solid solution series members tremolite and cummingtonite so that the thermodynamic properties of its assemblage can be applied to solving other solid solution series from a variety of amphibole minerals. CROCIDOLITE, TREMOLITE, ACTINOLITE, AND ANTHOPHYLLITE) Asbestos was considered by previous IARC Working Groups in 1972, 1976, and 1987 (IARC, 1973, 1977, 1987a). Burma: green catseye gems. Colors: Green, green-black, grey-green, or black. — Actinolite and Tremolite are two very similar minerals that form a series with each other and essentially share the same chemical formula. Pure magnesium tremolite is creamy white, 1.25" x .75" x .5" Tremolite is a high vibrational stone of peace and higher knowledge. Tremolite crystal, on a Dolomite matrix, with very well defined faces and edges, with a polycrystalline termination, an intense luster between vitreous and silky, translucent, but with greater transparency than usual in specimens from this area and of green-gray color with bluish tints. Tremolite Size: 4x10cm A lustrous, free standing, Tremolite crystal 10 cm. Color/Pleochroism: Pleochroic in various shades of green and brown. Higher Spirit. Jul 24, 2019 - This Pin was discovered by Monde minéral (Minerals). Menu Cart 0. The chemistry is Ca2(Mg, Fe)5Si8O22(OH)2. Tremolite forms a series with actinolite and ferro-actinolite. The streak is colorless, although the mineral itself can range in color from white to dark grey, yellowish, pink to lilac. Ontario and Quebec, Canada: gray, green and blue crystals; a chatoyant greenish variety found in Ontario cuts interesting catseye gems. Jul 24, 2019 - Tremolite pseudomorph after Diopside - Crystal with 8cm - June of 2005 Copyright © Photo & Collection of Martins da Pedra Tremolite is not a favorite amongst collectors; it is too often a dull whitish, grey color with intermingled crystal fibers without terminations. It aids in accessing higher frequencies and easily streams information from other dimensions. Actinolite is comparatively a common mineral found in of some of the metamorphic rocks. Comments: Black grains of magnesiocoulsonite with green chromian tremolite.Metallic bronze grain of thiospinelid of kalininite-florensovite series is visible in the upper right corner of the image. Discover (and save!) Check out our tremolite beads selection for the very best in unique or custom, handmade pieces from our shops. The stone can be grey, pink, brown, green and white. Exposure Data Tremolite is a member of the amphibole group of silicate minerals with composition: Ca2(Mg5.0-4.5Fe2+0.0-0.5)Si8O22(OH)2. long on Uvite. It forms either elongate, bladed or fibrous columnar crystals. Jul 24, 2019 - Tremolite - close up of a graphite included gray crystal group within an a calcite matrix and additional isolated platy graphite. Although not necessarily a “happiness crystal”, it alleviates sadness and depression. Do not make an elixir of this crystal due to its asbestos content. Click the pictures to get full data, click the X to remove the gem from the list. Gray Tremolite with Zircon. Tremolite is named after its discovery locality, in Val Tremola, near St. Gotthard, Switzerland. Since that time, new data have become available, these have been incor - porated in the Monograph, and taken into consideration in the present evaluation. Gem-quality tremolite is found in very few locations, principally in St. Lawrence County, New York in the USA. It is also highly empowering, giving one a sense of inner strength as well as physical presence. This is a very serious stone and might have asbestos in it, so you have to take care when using it. MINERALOGY, PROPERTIES, OCCURRENCE: The nephrite variety of tremolite [basic calcium magnesium silicate, Ca2MgSi8O22(OH)2] crystallizes in the monoclinic system and occurs as tough, compacted masses of tiny, interlocked, bladed crystals. Tremolite. Collection: John Betts - Fine Minerals: Description : Old specimen with several elongated, gray Tremolite crystals up to 22 mm long in white marble matrix. This crystal helps the person in being more attuned to the universal energies and powers. Actinolite forms a series with Tremolite, and a variety of Actinolite is Nephrite Jade. Natural Chromium Tremolite pieces from Carleton Place, Ontario, Canada Average Size: 1.5 x 1.8 cm or 0.6 x 0.7 inches Average Weight: 0.2 oz Tremolite: (Melody) This mineral crystallizes in the form o ••• Search. 1. The termination turns fibrous, and the crystal shows a slight bend. Mineral Name: Tremolite Chemical Composition: (Ca₂)(Mg₅)(Si₈O₂₂)(OH)₂ Color: White, brown, colourless, gray, light green, green, light yellow, pink-violet Streak: White/colorless Hardness: 5-6 Cleavage/Fracture: Tremolite has a prismatic cleavage, in which the mineral breaks off into thin, vertical, prism-like crystals. Crystal Description. Distribution: Found in the Windhoek district on farms Nauams 177 and Alberta 175. 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