amethyst cut using the faceting pattern called dianes oval

Faceting Focus: Diane’s Oval

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yooperlites fluorescing under UV light

Yooperlites: What & Where to Find Them

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lake-michigan-beaches

8 Rocks Found on Lake Michigan Beaches

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mica sample

Mica: A Shimmering Sheet Mineral

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calcite is identified in this keokuk geode

A Calcite Identification Guide

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orthoclase feldspar minerals specimen

Feldspar Minerals: Rock Forming Basics

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feldspar quartz found while rockhounding Utah

Rockhounding Utah: Skyline Drive Minerals

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Alexandrite: The Chameleon Gemstone

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california magnesite plasma agate specimen

California Magnesite Plasma Agate: What to Cut

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kentucky agate specimen

Kentucky Agate: Breaking Into the Big Leagues

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