Hydroboracite from Kohnstein Quarry, Thuringia, Germany - image 1
Hydroboracite from Kohnstein Quarry, Thuringia, Germany - image 2

Hydroboracite from Kohnstein Quarry, Thuringia, Germany

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Hydroboracite is a hydrated calcium magnesium borate mineral that forms in evaporite deposits where boron rich brines have concentrated in arid environments. This is a superb loose large lustrous and gemmy colorless double terminated crystal. In super condition. Quite large for the species.

Product details

SpeciesHydroboracite
SizeSmall Cabinet
Dimensions9.0 x 1.3 x 0.5 cm
Added on03/10/2026
LocalityGermany, Thuringia, Kohnstein Quarry
Current owner
Unknown Owner
Acquired
May 2026
Price paid
$300.00
Previous owners
DateCollectorAcquisition price
—Weinrich MineralsNot disclosed

Learn more

Hydroboracite
Mineral guide
Learn about Hydroboracite
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Hydroboracite
Regional guide
Hydroboracite from Kohnstein Quarry
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Locality guide
Kohnstein Quarry
Kohnstein Quarry, Germany — a distinctive European collector locality for evaporites, famed for hydroboracite on anhydrite and a diverse borate suite.