Moorhouseite
A variety of Minerals
What is Moorhouseite?
Moorhouseite is a rare mineral with the formula CoSO4•6H2O, a naturally occurring cobalt(II) sulfate hexahydrate. It is the lower-hydrate-equivalent of bieberite (heptahydrate) and aplowite (hexahydrate). It is also hydrated equivalent of cobaltkieserite. It occurs together with moorhouseite within efflorescences found in the Magnet Cove Barium Corporation mine in Walton, Nova Scotia, Canada.
Market Value Factors
Pricing varies for every rock and mineral, so use these universal factors to gauge Moorhouseite before comparing listings or appraisals.
Size & Weight
Larger, intact specimens usually command higher prices.
Rarity & Demand
Scarce material or popular varieties sell at a premium.
Condition & Finish
Chips, repairs, and heavy wear lower value; clean prep helps.
Treatment & Provenance
Untreated specimens with documented locality are prized.
Moorhouseite Localities Map
See where Moorhouseite is found with a localities map, collecting zones, and geology context. Generate a sample map preview below.
Key Characteristics
Composition of Moorhouseite
Analysis of synthetic analogue of moorhouseite revealed, that its structure may be described as containing: Co(H2O)6 octahedra, forming alternate layers SO4 tetrahedra hydrogen bonds (two per a single water molecule)
Quick Facts
Physical Properties
- Color
- Pink
- Hardness (Mohs)
- 2.5
- Density
- 2.006 g/cm³
- Streak
- White
Chemical Properties
- Chemical Formula
- (Co,Ni,Mn)SO4 · 6H2O
- Elements
- Co, H, Mn, Ni, O, S

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Moorhouseite FAQs
How do I identify Moorhouseite?
Moorhouseite can be identified by its hardness of 2.5 on the Mohs scale, Pink color. Look for these key characteristics when examining specimens.
What color is Moorhouseite?
Moorhouseite typically appears in Pink. Color can vary depending on impurities and formation conditions.
How hard is Moorhouseite?
Moorhouseite has a hardness of 2.5 on the Mohs scale. This makes it a soft mineral that can be scratched easily.
What is the composition of moorhouseite of Moorhouseite?
Analysis of synthetic analogue of moorhouseite revealed, that its structure may be described as containing: Co(H2O)6 octahedra, forming alternate layers SO4 tetrahedra hydrogen bonds (two per a single water molecule)


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