studenitsite
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Studenitsite is a rare borate mineral with chemical formula of .
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- Nickel-Strunz '10th ed', review of (9th ed/ 2009 update)
- 6.GB.05
- Nickel-Strunz 9th edition (updated 2009)
- 6.GB.05
- Commons category
- Studenitsite
- IMA Mineral Symbol
- Sdn
- chemical formula
- NaCa₂[B₉O₁₄(OH)₄] * 2H₂O
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Studenitsite is a rare borate mineral with chemical formula of .
Studenitsite has a vitreous luster, a Mohs hardness of 6 and color of light-dirty yellow. It is a monoclinic mineral and belongs to the space group P2/c. The basic unit of the crystal structure {{chem2|[B9O14(OH)4]^{5-} }} layers has a Miller index of (001). Studenitsite has a low surface relief, which means the measure of the relative difference between the index of refraction of the mineral and surrounding medium is small. Birefringence is the difference between two principal indices of refraction of a uniaxial crystal. Studenitsite has a maximum birefringent value of . Studenitsite has three indices of refraction. Their values are , , . Indices of refraction are the ratio of the light's speed in the mineral and the medium.