The Mohs scale of mineral hardness characterises the scratch resistance of various minerals through the ability of a harder material to scratch a softer material. It was created in 1812 by the German geologist and mineralogist Friedrich Mohs and is one of several definitions of hardness in materials science.

The Mohs scale of mineral hardness characterises the scratch resistance of various minerals through the ability of a harder material to scratch a softer material. It was created in 1812 by the German geologist and mineralogist Friedrich Mohs and is one of several definitions of hardness in materials science.

Crystal Healing Chart: Crystal Formations and their Meanings. What are the Crystal Healing properties of different crystal formations and shapes? Discover how these common and unusual forms add extra special meanings to your crystals. #crystals #infographic

Crystal Formations and Their Meanings

Crystal Healing Chart: Crystal Formations and their Meanings. What are the Crystal Healing properties of different crystal formations and shapes? Discover how these common and unusual forms add extra special meanings to your crystals. #crystals #infographic

This is Stair Hole, next to Lulworth Cove, Dorset, United Kingdom....I've been here, Lulworth cove is really pretty!

This is Stair Hole, next to Lulworth Cove, Dorset, United Kingdom....I've been here, Lulworth cove is really pretty!

I found this gorgeous geological map of Great Britain yesterday, I love the internet.

I found this gorgeous geological map of Great Britain yesterday, I love the internet.

The Art of Rock Folding by Ern Mainka--Geological rock folding in sedimentary layers on beach coastline, Croajingalong National Park, Victoria, Australia. Approx 5×3 foot section shown.

The Art of Rock Folding by Ern Mainka--Geological rock folding in sedimentary layers on beach coastline, Croajingalong National Park, Victoria, Australia. Approx 5×3 foot section shown.

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