Author

Pablo Delgado

Pablo Delgado is an associate editor at Biology Insights who covers earth materials and minerals. Based in Scottsdale, Arizona, he has spent 20 years in publishing, previously writing and editing for an industry trade magazine. Delgado graduated from Loyola University Chicago with a bachelor’s degree in journalism.

Is a Diamond a Rock or a Mineral?Earth & Space
How Hard Is Fluorite on the Mohs Scale?Earth & Space
What Are Diamonds Made From and How Are They Formed?Chemistry
Is Gold a Mineral? Explaining Its Scientific Classification Earth & Space
Where Can Turquoise Be Found? Major Sources and Locations Earth & Space
How Hard Is Calcite on the Mohs Hardness Scale?Earth & Space
What Colors Can Quartz Be? From Clear to Multicolored Earth & Space
What Color Is Dolomite? From White to Pink and Beyond Earth & Space
Is Quartzite Man Made? The Truth About This Natural Stone Earth & Space
What Is the Hardness of Marble on the Mohs Scale?Earth & Space
Is Pyrite Harder Than Gold? A Side-by-Side Comparison Earth & Space
Are Diamonds Metamorphic Rocks or Something Else?Earth & Space
Where Do Moissanite Come From? Natural vs. Lab Chemistry
Is Red Tiger Eye Natural or Heat Treated?Earth & Space
Why Is Color an Unreliable Characteristic for Identifying Minerals?Earth & Space
How Hard Is Onyx? Its Durability and Scratch Resistance Earth & Space
Is a Pearl a Gem? The Definition of an Organic Gemstone Earth & Space
Is Purple Turquoise Real? The Truth About Its Color Earth & Space
Where Is Tanzanite Mined? The Only Source in the World Earth & Space
What Is a Mineralogist and What Do They Do?Earth & Space
What Is Rhyolite Used For? From Tools to Construction Earth & Space
How Hard Is Quartz on the Mohs Hardness Scale?Earth & Space
Are Diamonds Coal? The Key Differences Explained Earth & Space
What Is Fluorite Made Of and What Causes Its Colors?Earth & Space
Where Is Peridot Mined? Major Sources and Locations Earth & Space
What Is Coltan Mineral Used For?Earth & Space
What Is a Ruby Made Out Of? Its Chemical Structure Explained Chemistry
What Are the 5 Characteristics That Define a Mineral?Earth & Space
How Hard Is Labradorite on the Mohs Scale?Earth & Space
Where Is Marble Mined? Major Global Sources Earth & Space