Mineralogy & Gemology Articles (Most Votes) — Knoji
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Identifying the treasures of the earth – precious metals, gemstones, and crystals, birthstones, and geologist Friedrich Mohs, who devised a scale to define hardness of minerals.
Published by Tel Asiado 88 months ago in Mineralogy & Gemology | +21 votes | 6 comments
In the late 18th century, these elements are discovered as oxidized materials – hence “earths”, they are called Rare Earths. They are just actually metals and aren’t rare; just all over the place. A cupful of dirt from a backyard might contain an iota, maybe a few parts per million. The comparison of the rarest rare earth is around 200 times more abundant than gold but deposits large and concentrated enough to be worth mining are indeed rare.
Published by Ron Siojo 78 months ago in Mineralogy & Gemology | +19 votes | 13 comments
About the former jewelry collection of Marie-Antoinette and its history.
Published by Peter Bilton 98 months ago in Mineralogy & Gemology | +17 votes | 6 comments
What are rare earth elements and how are they used in modern technologies.green technologies, batteries, cerium, dysprosium, erbium, europium, gadolinium, holmium, lanthanum, lutetium, neodymium, praseodymium, samarium, scandium, terbium, thorium, thulium, ytterbium, and yttrium
Published by Daniel Snyder 85 months ago in Mineralogy & Gemology | +14 votes | 4 comments
Rough jade is a gemstone that is believed to bring good luck and healthfulness. It can be fashioned into jewelry and sold on EBay.
Published by Peter Bilton 99 months ago in Mineralogy & Gemology | +11 votes | 3 comments
This describes the methods used to remove stains and other soil causing conditions from mineral specimens. This article also describes some of the chemicals used in the process of cleaning.
Published by John Carter 83 months ago in Mineralogy & Gemology | +10 votes | 3 comments
Twelve gemstones represent the 12 months of the year. Discover and learn which gemstone is your birthstone.
Published by Peter Bilton 98 months ago in Mineralogy & Gemology | +10 votes | 1 comments
Aluminum is the wonder metal of this era. You see and use it every day - in the wrappers of your candy bars, in the bridges you cross, in containers for your toothpaste, in jet-propelled aircraft. Aluminum is the most plentiful of all metals, since bauxite ore, from which it is made, is found in almost every country in great abundance.
Published by Levy Dalumpines 87 months ago in Mineralogy & Gemology | +9 votes | 4 comments
Aguamarine is the birthstone for March enjoys a worldwide distribution. Aquamarine and its cousins can be found in most pegmatites as a uncommon mineral.
Published by John Carter 92 months ago in Mineralogy & Gemology | +9 votes | 4 comments
About the history of the Tiffany diamond and Tiffany & Co, which was made popular by the movie Breakfast at Tiffany's
Published by Peter Bilton 97 months ago in Mineralogy & Gemology | +9 votes | 2 comments
About the Museo de Oro in Bogota, Colombia and its history.
Published by Peter Bilton 98 months ago in Mineralogy & Gemology | +9 votes | 6 comments
About the gemstone ruby and its origin.
Published by Peter Bilton 98 months ago in Mineralogy & Gemology | +9 votes | 5 comments
About fire and other types of opals: How they evolved and where they are found.
Published by Peter Bilton 99 months ago in Mineralogy & Gemology | +9 votes | 3 comments
Where to prospect for fire agates in the southwestern United States. And about the gemstone fire agate and which colors are the most desirable.
Published by Peter Bilton 99 months ago in Mineralogy & Gemology | +9 votes | 4 comments
What are precious stones? How are they classified, and what is their connection with hidden messages, the seasons, and a tree?
Published by Jan Reid 85 months ago in Mineralogy & Gemology | +8 votes | 10 comments
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All Experts
#1 - Peter Bilton
#2 - John Carter
#3 - Tel Asiado
#4 - Debbie Edwards
#5 - Ron Siojo
#6 - Levy Dalumpines...
#7 - Daniel Snyder
#8 - Jan Reid
#9 - Vicki Perry
#10 - thestickman
#11 - Mr Ghaz
#12 - hunterfact
#13 - Nida Cabauatan A...