Bassoite
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About Bassoite
Formula:
SrV3O7·4H2O
Colour:
Black
Lustre:
Sub-Metallic
Hardness:
4 - 4½
Specific Gravity:
2.940 (Calculated)
Crystal System:
Monoclinic
Name:
In honour of Riccardo Basso (b. 1947), full professor of Mineralogy and Crystallography at the University of Genova.
This page provides mineralogical data about Bassoite.
Classification of Bassoite
Approved
Approval Year:
2011
Physical Properties of Bassoite
Sub-Metallic
Transparency:
Opaque
Colour:
Black
Streak:
Black
Hardness:
4 - 4½ on Mohs scale
Density:
2.940 g/cm3 (Calculated)
Optical Data of Bassoite
Type:
Anisotropic
Anisotropism:
Very weakly pleochroic
Bireflectance:
Weakly bireflectant
Colour in reflected light:
Grey to a dark green
Internal Reflections:
Absent
Chemical Properties of Bassoite
Formula:
SrV3O7·4H2O
IMA Formula:
SrV4+3O7 · 4H2O
Elements listed:
Crystallography of Bassoite
Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
P21/m
Cell Parameters:
a = 5.313(3) Å, b = 10.495(3) Å, c = 8.568(4) Å
β = 91.14(5)°
β = 91.14(5)°
Ratio:
a:b:c = 0.506 : 1 : 0.816
Unit Cell V:
477.7 ų
Z:
2
X-Ray Powder Diffraction
Powder Diffraction Data:
d-spacing | Intensity |
---|---|
8.5663 | (100) |
6.6363 | (14) |
3.4399 | (14) |
3.4049 | (17) |
2.8339 | (15) |
2.7949 | (11) |
2.6550 | (15) |
2.6237 | (11) |
1.8666 | (15) |
Type Occurrence of Bassoite
General Appearance of Type Material:
Black euhedral to subhedral grains up to 400 μm across.
Associated Minerals at Type Locality:
Synonyms of Bassoite
Other Information
Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.
References for Bassoite
Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Bindi, L., Carbone, C., Cabella, R., Lucchetti, G. (2011): Bassoite, SrV3O7·4H2O, a new mineral from Molinello mine, Val Graveglia, eastern Liguria, Italy. Mineralogical Magazine, 75, 2677-2686.
Internet Links for Bassoite
mindat.org URL:
https://www.mindat.org/min-42240.html
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Localities for Bassoite
Locality List




All localities listed without proper references should be considered as questionable.
Italy (TL) | |
| http://www.geoitalia.org/index.php?action=folder_list〈=it&folder_id=310; Bindi, L., Carbone, C., Cabella, R., Lucchetti, G. (2011): Bassoite, SrV3O7·4H2O, a new mineral from Molinello mine, Val Graveglia, eastern Liguria, Italy. Mineralogical Magazine, 75, 2677-2686. |
Molinello Mine, Ne, Graveglia Valley, Genova Province, Liguria, Italy