Bytownite
Mexico
5.63 carats
© Rarestone.com
Bytownite Gemstones by Colour
This table shows the variety of hues this gemstone can be found in. Click on a photo for more information.
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Bytownite Gemstones by Size
This table shows distribution of Bytownite gemstone sizes that are listed on this site. This can give a good indication as to the general availability of this gemstone in different sizes.
Contributed photos
Lightest:0.21 cts
Heaviest:7.08 cts
Average:2.40 cts
Total photos:24
Do you have a larger Bytownite? Why not upload a photo?
| General Information | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| A variety or type of: | Feldspar | |||||||||
| Chemical Formula |
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| Physical Properties of Bytownite | ||||||||||
| Mohs Hardness | 6 to 6.5, Blue Chart Gem Identification (2010) More from other references | |||||||||
| Specific Gravity | 2.72 to 2.75, Blue Chart Gem Identification (2010) More from other references | |||||||||
| Tenacity | Brittle, Gems, Sixth Edition (2006) | |||||||||
| Cleavage Quality | Perfect, Gemmological Tables (2004) More from other references | |||||||||
| Fracture | Uneven,Conchoidal, Gems, Sixth Edition (2006) | |||||||||
| Refractive Index | 1.561 to 1.583, Blue Chart Gem Identification (2010) More from other references | |||||||||
| Optical Character | Biaxial/-, Blue Chart Gem Identification (2010) More from other references | |||||||||
| Birefringence | 0.007 to 0.011, Blue Chart Gem Identification (2010) More from other references | |||||||||
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