Author

David Sanchez Page 3

A certified gemologist from an independent jewelry shop in Manhattan, Kansas, David Sanchez now reports on gem identification and mineral properties for Biology Insights. He still appraises stones a few mornings a week at a neighborhood bench, testing hardness and assessing treatments for private clients.

Can Gold Be Scratched? The Science Explained Earth & Space
How to Identify Topaz: Physical and Visual Tests Earth & Space
What Makes a Yellow Diamond Yellow?Chemistry
Do Garnets Fluoresce? The Science of Luminescence Earth & Space
Can Labradorite Be Faked? How to Spot a Fake Earth & Space
How to Grow Synthetic Sapphire Crystals Chemistry
How Old Are Diamonds? The Science of Their Ancient Age Earth & Space
How Much Nickel Is in 14k Gold?Chemistry
Is Diamond Stronger Than Gold? A Scientific Comparison Physics
How Are Diamonds Formed? From Deep Earth to Surface Earth & Space
Is Quartz Porous or Nonporous?Earth & Space
Is There Nickel in Gold? And Is It Safe?Chemistry
What Is 10K Gold Mixed With?Chemistry
Can Aragonite Go in Water? Its Effect on Water Chemistry Chemistry
Can Lab Grown Diamonds Be Detected?Chemistry
How to Grow Diamonds: HPHT and CVD Methods Chemistry
What Are the Physical and Electrical Properties of Tourmaline?Physics
Is Cubic Zirconia Lab Created?Chemistry
What Physical Feature Distinguishes Biotite From Muscovite?Chemistry
What Does a Diamond Feel Like to the Touch?Physics
How Hard Is Zirconium? Metal vs. Zirconia Chemistry
How Hot Is Blue Lava? The Science Behind the Flames Physics
Does Rose Gold Rust? The Truth About Tarnish Chemistry
How to Tell Lab Grown Diamonds From Natural Chemistry
How to Grow a Diamond: HPHT and CVD Methods Chemistry
What Is Topaz Luster and What Causes It?Earth & Space
What Is Plated Hematite and How Is It Made?Chemistry
How Hard Is Carbon? From Diamond to Graphite Chemistry
Is Gold More Durable Than Silver?Chemistry
Why Are Diamonds So Expensive?Chemistry