| Gewicht | 0,05 kg |
|---|---|
| Dimensions | 1,1 × 1,1 × 3,5 cm |
| Sales Unit | |
| Type | |
| Form | |
| Origin | |
| SKU | 4974 |
Sodalite Lucky Bottle
Sales unit: Per 10 pieces
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Sodalite Lucky Bottle from China
Sodalite
Sodalite is a blue mineral from the feldspar replacement group that often contains white veins or flecks of calcite. It is valued for its deep colour and glassy luster. Sodalite is mainly found in igneous rocks such as syenite and nephelineite.
Major deposits include Canada, Brazil, Namibia and Russia. Its chemical formula is Na₈(Al₆Si₆O₂₄)Cl₂. Its hardness is around 5.5 to 6 on the Mohs scale.
A well-known variant is hackmanite, a rare form of sodalite that can exhibit fluorescence or tenebrescence (discolouration under UV light).
Sources:
Mindat.org, Gemdat.org, Wikipedia - Sodalite
Selenite
Selenite is a clear to translucent variety of the mineral gypsum (CaSOâ‚„-2Hâ‚‚O). It is known for its glassy to pearly luster and often fibrous structure. A common form is selenite, which has a silky luster and occurs in long, fibrous crystals. Despite its name, selenite has nothing to do with the element selenium; the name is derived from the Greek word for moon, because of its soft luster.
Selenite forms in sedimentary environments during the evaporation of seawater and is found in countries such as Mexico, Morocco, the US and Australia. It is a soft mineral with a hardness of 2 on the Mohs scale, making it easy to work by hand. Almost all selenite sold on the Dutch market is satin spar; however, selenite is a market-accepted sales name.
Sources:
Mindat.org, Gemdat.org, Wikipedia - Selenite
