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Garrelsite-VIII

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Formula:
Ba3NaSi2B7O16(OH)4
Crystal System:
Monoclinic
This page provides mineralogical data about Garrelsite-VIII.


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Optical Data of Garrelsite-VIIIHide

Type:
Biaxial (-)
RI values:
nα = 1.620 nβ = 1.633 nγ = 1.640
2V:
Measured: 72° , Calculated: 72°
Max Birefringence:
δ = 0.020
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Moderate
Dispersion:
r < v strong

Chemical Properties of Garrelsite-VIIIHide

Formula:
Ba3NaSi2B7O16(OH)4

Crystallography of Garrelsite-VIIIHide

Crystal System:
Monoclinic

Other InformationHide

Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

Internet Links for Garrelsite-VIIIHide

 
Mineral and/or Locality  
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