Author

David Sanchez Page 7

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.

Which Is Stronger: Silver or Gold?Chemistry
What Is the Hardness of Calcium on the Mohs Scale?Chemistry
Is Gold a Raw Material or a Finished Product?Chemistry
Why Is My Gold So Yellow?Chemistry
How Long Does It Take for Oil to Form?Earth & Space
How Can You Tell If Gold Is Real?Chemistry
How Is Topaz Made? The Geological Process Explained Earth & Space
How to Test Raw Gold for Purity and Authenticity Chemistry
Does Clay Expand When Wet? The Science Explained Chemistry
What Do They Cut Diamonds With?Physics
How Is Gold Processed? From Ore to Pure Bullion Chemistry
How to Make Diamonds From Ashes Chemistry
Why Only a Diamond Can Cut Another Diamond Physics
Why Is My Gold Turning Red?Chemistry
What Is the Texture of Pumice and Why Is It Porous?Earth & Space
How Long Does It Take to Refine Gold?Chemistry
Can You Carbon Date Stone?Earth & Space
Are Diamonds See Through? The Science of Diamond Transparency Physics
What Is Real Silver? Purity, Hallmarks, and Testing Chemistry
Does Cubic Zirconia Scratch Glass?Chemistry
What Is the Streak of Peridot and How Is It Tested?Earth & Space
Why Do Jewelers Use Alloys in Jewelry?Chemistry
Are Diamonds Unbreakable? The Truth About Their Strength Chemistry
Is Sterling Silver Rust Proof? The Science Explained Chemistry
How Is Silver Made? From Ore to Pure Metal Chemistry
Are Lab-Grown Diamonds Actually Sustainable?Environment
Are Colored Diamonds Natural or Treated?Chemistry
How to Identify a Rough Diamond: Visual & Physical Tests Chemistry
What Is the Hardness of Cubic Zirconia?Chemistry
Is Rhodium More Expensive Than Platinum?Chemistry