Bergslagsten (

Bergslagsten ("Swedish blue") is melting product / "slag" in iron production, Sweden

Rhodochrosite tumbled from the new

Rhodochrosite tumbled from the new "La Rocha mines" in Bolivia

Impactite from Greenland (rare)

Always in search of the newest minerals & tumbled stones we came across this stone in 2019. Very beautiful and high-quality cut.
Availability: In stock
SKU
9007
Impactite from Greenland (rare) is available to buy in increments of 100

Impactite (or impact glass) is rock created or modified by the impact of a meteorite. Impactite includes shock-metamorphosed target rocks, melts (suevites) and mixtures of the two, as well as sedimentary rocks with significant impact-derived components (shocked mineral grains, tektites, anomalous geochemical signatures, etc.). In June 2015, NASA reported that impact glass has been detected on the planet Mars. Such material may contain preserved signs of ancient life—if life existed. When a meteor strikes a planet's surface, the energy release from the impact can melt rock and soil into a liquid. If the liquid cools and hardens quickly into a solid, impact glass forms before the atoms have time to arrange into a crystal lattice. Impact glass is dark brown, almost black, and partly transparent.

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