List of Rocks
July 2024: Celestine
Chemical Formula: SrSO4 Mohs Hardness Scale: 3.0 to 3.5 Celestine, AKA celestite, is a lovely sky-blue mineral that takes its name from the heavens. These crystals are made of strontium...
July 2024: Celestine
Chemical Formula: SrSO4 Mohs Hardness Scale: 3.0 to 3.5 Celestine, AKA celestite, is a lovely sky-blue mineral that takes its name from the heavens. These crystals are made of strontium...
June 2024 - Epidote
Chemical Formula: Ca2(Al,Fe3+(Al2O)(SiO4)(Si2O7)(OH)) Mohs Hardness Scale: 6 Epidote is a super common crystal that can be found in tiny amounts just about everywhere. Depending on the mineral inclusions, it can...
June 2024 - Epidote
Chemical Formula: Ca2(Al,Fe3+(Al2O)(SiO4)(Si2O7)(OH)) Mohs Hardness Scale: 6 Epidote is a super common crystal that can be found in tiny amounts just about everywhere. Depending on the mineral inclusions, it can...
May 2024 - Pyrite
Locality: Ojuela Mining District, Mexico Chemical Formula: FeS2 Mohs Hardness Scale: 6 to 6.5 Pyrite has built up a bit of a bad reputation over the years. Because it looks...
May 2024 - Pyrite
Locality: Ojuela Mining District, Mexico Chemical Formula: FeS2 Mohs Hardness Scale: 6 to 6.5 Pyrite has built up a bit of a bad reputation over the years. Because it looks...
April 2024 - Topaz
Locality: Thomas Range, Utah Chemical Formula: Al2SiO4(F,OH)2 Topaz is the one of the hardest minerals on the Mohs scale, but that doesn’t mean it's the most durable. And it’s all thanks...
April 2024 - Topaz
Locality: Thomas Range, Utah Chemical Formula: Al2SiO4(F,OH)2 Topaz is the one of the hardest minerals on the Mohs scale, but that doesn’t mean it's the most durable. And it’s all thanks...
March 2024 - Almandine Garnet
People have been using garnets in jewelry since the time of the Egyptian pharaohs. They’re typically dark red, but garnets can come in a range of colors from yellow to...
March 2024 - Almandine Garnet
People have been using garnets in jewelry since the time of the Egyptian pharaohs. They’re typically dark red, but garnets can come in a range of colors from yellow to...
February 2024 - Tourmaline
Mineral Name: Cyclosilicate Locality: Himalaya Mine, California Tourmaline is a kind of silicate crystal that comes in tons of colors, depending on what minerals get mixed in while the crystal forms. Some...
February 2024 - Tourmaline
Mineral Name: Cyclosilicate Locality: Himalaya Mine, California Tourmaline is a kind of silicate crystal that comes in tons of colors, depending on what minerals get mixed in while the crystal forms. Some...