3dgems
off to a rocking start
Member since March 2017
Posts: 1
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Post by 3dgems on Mar 18, 2017 5:09:44 GMT -5
Hello , I am looking for the advice to tumble and polish small tanzanite chips for mosaics. I have rotary and vibra tumblers. I am a beginner, but had some successes with tough cases. Any hint is highly appreciated. Thank you Alec
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Post by 1dave on Mar 18, 2017 7:33:51 GMT -5
Hello , I am looking for the advice to tumble and polish small tanzanite chips for mosaics. I have rotary and vibra tumblers. I am a beginner, but had some successes with tough cases. Any hint is highly appreciated. Thank you Alec Welcome! We like photos here, and information for newcomers. geology.com/gemstones/tanzanite/Physical Properties of TanzaniteMineralogy Tanzanite is a blue color-variety of the mineral zoisite. Color Blue to bluish purple to bluish violet. The color of commercial stones is almost always produced or enhanced by heating brown zoisite. Strong pleochroism: dichroism and trichroism. Tanzanite is seen in a wide range of color saturations and tones that make it an alternative stone for aquamarine, blue topaz, and sapphire. Luster Vitreous Diaphaneity Transparent. Often of high clarity. Cleavage / Fracture Perfect cleavage in one direction. Mohs Hardness 6.5 Specific Gravity 3.35 Diagnostic Properties Defined by its blue color, usually with a distinct purple or violet tint. Strong pleochroism, specific gravity, hardness, refractive index. Chemical Composition Ca2Al3(SiO4)3(OH) Crystal System Orthorhombic Uses Gemstone
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Post by Jugglerguy on Mar 18, 2017 7:48:57 GMT -5
Hi Alec, I've never tumbled tanzanite, but welcome to the forum. Hopefully someone here can give you some advice.
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Post by 1dave on Mar 18, 2017 21:15:43 GMT -5
For best results this should be posted in the tumbling section.
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