List of Rocks
January 2025 - Adamite on Limonite
FORMULA: Zn2AsO4OH LOCATION: Ojuela Mine, Durango, Mexico Adamite is a mineral that comes in a variety of colors, from pale yellow or green to lovely oceany hues. And these pretty...
January 2025 - Adamite on Limonite
FORMULA: Zn2AsO4OH LOCATION: Ojuela Mine, Durango, Mexico Adamite is a mineral that comes in a variety of colors, from pale yellow or green to lovely oceany hues. And these pretty...
December 2024 - Fluorite
Chemical Formula: CaF2 Mohs Hardness Scale: 4 Fluorite crystals are pretty simple, chemically speaking. They’re just fluoride and calcium, which naturally make a colorless crystal. But when impurities get into...
December 2024 - Fluorite
Chemical Formula: CaF2 Mohs Hardness Scale: 4 Fluorite crystals are pretty simple, chemically speaking. They’re just fluoride and calcium, which naturally make a colorless crystal. But when impurities get into...
September 2024 - Azurite
Formula: Cu3(CO3)2(OH)2 Mohs: 3.5 - 4 This stunning blue mineral has been used as a pigment for centuries—and no, it isn’t lapis lazuli. Azurite is a beautiful, deep blue crystal...
September 2024 - Azurite
Formula: Cu3(CO3)2(OH)2 Mohs: 3.5 - 4 This stunning blue mineral has been used as a pigment for centuries—and no, it isn’t lapis lazuli. Azurite is a beautiful, deep blue crystal...
November 2024 - New Jersey Amber
Locality: Sayreville, New JerseyMohs Hardness Scale: 2.5 Amber, AKA fossilized tree resin, is not just beautiful, but also really great for science. Despite the name, amber doesn't have to be,...
November 2024 - New Jersey Amber
Locality: Sayreville, New JerseyMohs Hardness Scale: 2.5 Amber, AKA fossilized tree resin, is not just beautiful, but also really great for science. Despite the name, amber doesn't have to be,...
October 2024 - Elrathai Trilobites
Species: Elrathia kingiiAge: 498 to 513 Million years old Trilobites are some of the most iconic and collectible fossils out there. Even though they look like pillbugs, they’re more closely...
October 2024 - Elrathai Trilobites
Species: Elrathia kingiiAge: 498 to 513 Million years old Trilobites are some of the most iconic and collectible fossils out there. Even though they look like pillbugs, they’re more closely...
August 2024: Quartz
Chemical Formula: SiO2 Moh's Hardness Scale: 7 Quartz: You know it, you love it. It’s the second most common mineral in the world, and it comes in just about every...
August 2024: Quartz
Chemical Formula: SiO2 Moh's Hardness Scale: 7 Quartz: You know it, you love it. It’s the second most common mineral in the world, and it comes in just about every...