Cavansite and Stilbite-Ca
| ID | 136 | |
|---|---|---|
| Mineral |
Cavansite
Stilbite-Ca |
|
| Location | Poona - Maharashtra - India | |
| Fluorescence | LW-UV: close SW-UV: close |
|
| Mindat.org |
View Cavansite information at mindat.org View Stilbite-Ca information at mindat.org |
|
Mindat data
| ID | 921 |
|---|---|
| Long ID | 1:1:921:0 |
| Formula |
Ca(V4+O)(Si4O10) · 4H2O
|
| IMA Status |
0 |
| General Appearance | Blue radiating clusters up to 25 mm in diameter and as single crystals up to 0.2 mm long. |
| Occurrence | In brown tuff of late Miocene age and in basalt and breccia of Eocene age. |
| Other Occurrences | Basalt vesicular filling. |
| Discovery Year | 1967 |
| Diapheny | Transparent |
| Cleavage | Good on {010} |
| Tenacity | brittle |
| Colour | Greenish-blue to blue |
| Hardness (min) | 3.0 |
| Hardness (max) | 4.0 |
| Lustre | Vitreous |
| About the name | For the elements calcium, vanadium, and silicon in the composition. |
| Crystal System | Orthorhombic |
| Cleavage Type | Distinct/Good |
| Morphology | Prismatic crystals, spherulitic rosettes. |
| Twinning | No twinning observed. |
| Publication Year | 1967 |
| key_elements |
0 |
| shortcode_ima | Cav |
| ID | 3785 |
|---|---|
| Long ID | 1:1:3785:9 |
| Entry type | 5 |
| Description | This name now refers to the zeolite subgroup including the Barrerite - Stilbite-Ca - Stilbite-Na - stellerite series. The end members barrerite and stellerite are orthorhombic and the others monoclinic, but the differences are subtle and difficult t... |
| About the name | Named in 1797 by Jean Claude de la Métherie from Greek στιλβη "stilbein", to glitter of shine, or "stilbe", a mirror, alluding to its pearly or vitreous luster. Originally, but inconsistently called zeolite in 1756 by Axel Cronstedt. Named crystalii ad centrum tendentes in 1758 by Cronstedt. In 1772, Johan Gottschalk Wallerius called this mineral zeolite selenitica lamellaris. Also in 1797, de la Métherie called this mineral zeolite nacrée. Werner (1780) called this mineral strehliger zeolith. Rene Just Haüy (1801) used the term stilbite anamorphique for a mineral now recognized as heulandite. Desmine was introduced in 1818 by Johann Friedrich August Breithaupt. Sphaerostilbite was used in 1832 by François Sulpice Beudant. Additional varietal names and synonyms have been proposed: blättricher zeolit, hypostilbite, puflerite, radiated zeolite, and syhedrite. |
| Group | Zeolite Group |
Details
Price: € 15
Dimensions: Not registered
Weight: Not registered
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Notes:
| Symbol | Element | |
|---|---|---|
| Al | Aluminium | |
| Ca | Calcium | |
| H | Hydrogen | |
| O | Oxygen | |
| Si | Silicium | |
| V | Vanadium |