Hardness: 3.5 - 4
Habit: Stalactitic aggregate of crystals or grains.
Colours: Colourless or white
| ||Crystal System: Orthorhombic|
Reaction with HCl: Strong
Identification in hand sample:
Stalactitic habit, hardness (greater than that of calcite) and colour.
Occurs in carbonate-bearing blueschist metamorphic rocks. Associated with glaucophane, lawsonite, pumpellyite. Also forms at or near the surface in cave and hot spring deposits.
Industrial / ecomonic uses:
Same as calcite, however abundance is much much less than that of calcite, thus having little economic value.