Rock & Gem Magazine

Dyed Hemimorphite Crystal: Spotting Fakes

Admin - October 31, 2025

volcanic glass snowflake obsidian specimen

Volcanic Glass: A Remarkable Mineraloid

needles blue agate heart shaped cabochon

Needles Blue Agate: Slab & Cab Basics

Hemimorphite: A Lapidary Guide

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Volcanic Glass: A Remarkable Mineraloid

Admin - November 6, 2025

Volcanic glass — a natural mineraloid commonly known as obsidian — forms when lava cools so rapidly that crystals don’t have time to develop....

Needles Blue Agate: Slab & Cab Basics

November 5, 2025

Hemimorphite: A Lapidary Guide

October 31, 2025

Dyed Hemimorphite Crystal: Spotting Fakes

October 31, 2025

smithsonite specimen mounted in a display case

Smithsonite, Smithson & the Smithsonian

October 30, 2025

Herkimer Diamonds: Origins & Sites

Admin - September 11, 2025

Herkimer diamonds may look like cut gemstones, but these naturally formed, double-terminated quartz crystals are found in only a few places—most famously in Herkimer...

burrow creek agate is a favorite on Purple crystals and gemstones lists

Guide to Purple Crystals and Gemstones

Admin - July 31, 2025

Purple crystals and gemstones have captured attention across design, collecting, and lapidary circles, especially after Pantone named Viva Magenta its 2023 Color of the...

Top 10 Orange Rocks and Gemstones

July 29, 2025

Minnesota Thomsonite: Rare & Radiant

August 1, 2025

Show Dates

7-10—FAIRPLAY, COLORADO:

Annual show; Jay Penn; 1/2 mile south of US 285 Rt. 9, Platte Dr., near Fairplay Beach; Thu. 9-5, Fri. 9-5, Sat. 9-5, Sun. 9-4; free admission; dealers, gems, minerals, slabs, rough, jewelry, beads, cabochons, fossils, equipment; contact Jay Penn, 2324 Alvarado NE, Albuquerque, NM 87110, (505) 883-4195; Email: jaypenn246@gmail.com; Website: https://abqfallshow.wixsite.com/fairplay

8-10—CARTERSVILLE, GEORGIA:

Annual show; Damian w/ Bellpoint Promotions; Clarence Brown Conference Center, 5450 State Route 20; Fri. 10-6, Sat. 10-6, Sun. 10-5; admission $5, children under 16 free; gem, mineral, jewelry, fossil, bead and metaphysical dealers selling their spectacular finds from all over the globe; contact Damian Belgali, (770) 386-1608; Email: mbellpoint@gmail.com; Website: www.bellpointpromotions.com

8-10—PARK HILLS, MISSOURI:

Annual show; Mineral Area Gem Mineral Society; Missouri Mines Historic Site, 4000 State Hwy 32; Fri. 9-6, Sat. 9-6, Sun. 9-4; free admission; Missouri Mines Historic Site and Museum will be open and free to the public for this event, free parking, demonstrations, silent auctions; contact Boneta Hensley, 411 Allen Street, Farmington, MO 63640, (573) 760-0488; Email: mojellybean63@yahoo.com; Website: https://www.facebook.com/groups/1249800061698210/

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