Zoisite Ruby faceted bead sterling silver 92.5% earrings 1.25 in long 18 mm bead
Approx. 18 mm beads.
I can make them with smaller, or multi beads, please contact me.
Natural and Untreated.
Top Quality.
Comes in hand made Thai purse, and gift box.
Maw Sit Sit beads may differ slightly from photo. Many other quality's and sizes available. Please email me for more info.
Buyer has 14 days to return unused item if I made any mistakes in my description. In original packing with sticker still attached. The buyer is responsible for return shipping, and must be insured for final value cost. The buyer is also responsible for any taxes, duties, and import laws for their country. No refund on EMS/standard shipping costs. Customs has been know to slow down shipments, please be patient.
Also please visit my Facebook page at Facebook.com/Siamgems
Zoisite
From Wikipedia, the free encyclopedia
This article is about the mineral named zoisite.
Zoisite-33616.jpg
Yellow zoisite crystal (1.7 x 1 x 0.8 cm)
General
Category Sorosilicate - epidote group
Formula
(repeating unit) Ca2Al3(SiO4)(Si2O7)O(OH)
Strunz classification 09.BG.10
Dana classification 58.2.1b.1
Identification
Color White, gray, greenish brown, greenish gray, pink, blue, purple
Crystal habit Prismatic crystals with striations; massive to columnar
Crystal system Orthorhombic - Dipyramidal
Cleavage Perfect {010} imperfect {100}
Fracture Uneven to conchoidal
Mohs scalehardness 6 to 7
Luster Vitreous, pearly on cleavage surfaces
Streak White or colorless
Diaphaneity Transparent to translucent
Specific gravity 3.10–3.36
Optical properties biaxial positive
Refractive index nα = 1.696 - 1.700 nβ = 1.696 - 1.702 nγ = 1.702 - 1.718
Birefringence 0.006-0.018
Pleochroism X = pale pink to red-violet; Y = nearly colorless to bright pink or deep blue; Z = pale yellow to yellow-green
References [1][2][3]
Major varieties
Tanzanite Gem-quality zoisite, blue-purple
Thulite Pink
Zoisite, first known as saualpite, after its type locality, is acalcium aluminiumhydroxy sorosilicatebelonging to theepidote group ofminerals. Its chemical formula isCa2Al3(SiO4)(Si2O7)O(OH).
Zoisite occurs asprismatic,orthorhombic (2/m 2/m 2/m) crystals or in massive form, being found inmetamorphic andpegmatitic rock. Zoisite may be blue to violet, green, brown, pink, yellow, gray, or colorless. It has a vitreous luster and a conchoidal to unevenfracture. When euhedral, zoisite crystals are striated parallel to the principal axis (c-axis). Also parallel to the principal axis is one direction of perfectcleavage. The mineral is somewhat higher than 6 in hardness, and its specific gravity ranges from 3.10 to 3.38, depending on the variety. It streaks white and is said to be brittle. Clinozoisite is a more commonmonoclinic polymorphof zoisite.
Anyolite from Tanzania (12 cm)
Transparent material is fashioned into gemstones while translucent-to-opaque material is usually carved. A metamorphic rock known asanyolite consists of green zoisite with black tschermakite and rubycrystals.[4][5] These rubies themselves are not of gem quality, but nevertheless their color provides a striking contrast to the green zoisite, and greatly enhances the decorative pieces that are carved from the rock.
The mineral was described by Abraham Gottlob Werner in 1805. He named it after the Carniolan naturalist Sigmund Zois, who sent him its specimens from Saualpe in Carinthia.[6] Zois realized that this was an unknown mineral when it was brought to him by a mineral dealer, presumed to be Simon Prešern, in 1797.[7]
Sources of zoisite include Tanzania (tanzanite), Kenya (anyolite),Norway (thulite), Switzerland, Austria, India, Pakistan, and the U.S. state of Washington.
References
Jump up^ http://rruff.geo.arizona.edu/doclib/hom/zoisite.pdf Handbook of Mineralogy
Jump up^ http://www.mindat.org/min-4430.html Mindat
Jump up^ http://webmineral.com/data/Zoisite.shtml Webmineral data
Jump up^ http://www.mindat.org/min-27151.html Mindat
Jump up^ http://www.cst.cmich.edu/users/dietr1rv/zoisite.htm Gemrocks
Jump up^ Flint-Rogers, Austin (1937). Introduction to the Study of Minerals. McGraw-Hill Book Company. p. 478.
Jump up^ Faninger, Ernest (1988/89). "Neue Daten über die Entdeckung des Zoisits" [New Data About the Discovery of Zoisite].Geologija: razprave in poročila (in German, with a Slovene abstract) (Državna založba Slovenije [State Publishing House of Slovenia]). 31, 32: 609–615. ISSN 0016-7789.
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Approx. 18 mm beads.
I can make them with smaller, or multi beads, please contact me.
Natural and Untreated.
Top Quality.
Comes in hand made Thai purse, and gift box.
Maw Sit Sit beads may differ slightly from photo. Many other quality's and sizes available. Please email me for more info.
Buyer has 14 days to return unused item if I made any mistakes in my description. In original packing with sticker still attached. The buyer is responsible for return shipping, and must be insured for final value cost. The buyer is also responsible for any taxes, duties, and import laws for their country. No refund on EMS/standard shipping costs. Customs has been know to slow down shipments, please be patient.
Also please visit my Facebook page at Facebook.com/Siamgems
Zoisite
From Wikipedia, the free encyclopedia
This article is about the mineral named zoisite.
Zoisite-33616.jpg
Yellow zoisite crystal (1.7 x 1 x 0.8 cm)
General
Category Sorosilicate - epidote group
Formula
(repeating unit) Ca2Al3(SiO4)(Si2O7)O(OH)
Strunz classification 09.BG.10
Dana classification 58.2.1b.1
Identification
Color White, gray, greenish brown, greenish gray, pink, blue, purple
Crystal habit Prismatic crystals with striations; massive to columnar
Crystal system Orthorhombic - Dipyramidal
Cleavage Perfect {010} imperfect {100}
Fracture Uneven to conchoidal
Mohs scalehardness 6 to 7
Luster Vitreous, pearly on cleavage surfaces
Streak White or colorless
Diaphaneity Transparent to translucent
Specific gravity 3.10–3.36
Optical properties biaxial positive
Refractive index nα = 1.696 - 1.700 nβ = 1.696 - 1.702 nγ = 1.702 - 1.718
Birefringence 0.006-0.018
Pleochroism X = pale pink to red-violet; Y = nearly colorless to bright pink or deep blue; Z = pale yellow to yellow-green
References [1][2][3]
Major varieties
Tanzanite Gem-quality zoisite, blue-purple
Thulite Pink
Zoisite, first known as saualpite, after its type locality, is acalcium aluminiumhydroxy sorosilicatebelonging to theepidote group ofminerals. Its chemical formula isCa2Al3(SiO4)(Si2O7)O(OH).
Zoisite occurs asprismatic,orthorhombic (2/m 2/m 2/m) crystals or in massive form, being found inmetamorphic andpegmatitic rock. Zoisite may be blue to violet, green, brown, pink, yellow, gray, or colorless. It has a vitreous luster and a conchoidal to unevenfracture. When euhedral, zoisite crystals are striated parallel to the principal axis (c-axis). Also parallel to the principal axis is one direction of perfectcleavage. The mineral is somewhat higher than 6 in hardness, and its specific gravity ranges from 3.10 to 3.38, depending on the variety. It streaks white and is said to be brittle. Clinozoisite is a more commonmonoclinic polymorphof zoisite.
Anyolite from Tanzania (12 cm)
Transparent material is fashioned into gemstones while translucent-to-opaque material is usually carved. A metamorphic rock known asanyolite consists of green zoisite with black tschermakite and rubycrystals.[4][5] These rubies themselves are not of gem quality, but nevertheless their color provides a striking contrast to the green zoisite, and greatly enhances the decorative pieces that are carved from the rock.
The mineral was described by Abraham Gottlob Werner in 1805. He named it after the Carniolan naturalist Sigmund Zois, who sent him its specimens from Saualpe in Carinthia.[6] Zois realized that this was an unknown mineral when it was brought to him by a mineral dealer, presumed to be Simon Prešern, in 1797.[7]
Sources of zoisite include Tanzania (tanzanite), Kenya (anyolite),Norway (thulite), Switzerland, Austria, India, Pakistan, and the U.S. state of Washington.
References
Jump up^ http://rruff.geo.arizona.edu/doclib/hom/zoisite.pdf Handbook of Mineralogy
Jump up^ http://www.mindat.org/min-4430.html Mindat
Jump up^ http://webmineral.com/data/Zoisite.shtml Webmineral data
Jump up^ http://www.mindat.org/min-27151.html Mindat
Jump up^ http://www.cst.cmich.edu/users/dietr1rv/zoisite.htm Gemrocks
Jump up^ Flint-Rogers, Austin (1937). Introduction to the Study of Minerals. McGraw-Hill Book Company. p. 478.
Jump up^ Faninger, Ernest (1988/89). "Neue Daten über die Entdeckung des Zoisits" [New Data About the Discovery of Zoisite].Geologija: razprave in poročila (in German, with a Slovene abstract) (Državna založba Slovenije [State Publishing House of Slovenia]). 31, 32: 609–615. ISSN 0016-7789.
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