mindat.org 的前十大競爭對手

webmineral.com

complete, up-to-date, mineral database containing 4,714 mineral species descriptions and comprehensive picture library of images. these data are linked to mineral tables by crystallography, chemical composition, physical and optical properties, dana classification, strunz classification, mineral name origins, mineral locality information, and alphabetical listing of all known valid mineral species. there are extensive links to other sources of mineral data available on the www.

irocks.com

iRocks.com - Search Mineral Archives

mineralienatlas.de

Mineralienatlas: Your platform for geology, mineralogy, paleontology, and mining, supported by thousands of members worldwide.

thediggings.com

the diggings™ is the most comprehensive free mining claim reference online. search 3,921,409 up-to-date gold, silver, and other mining claim maps within the usa.

gemrockauctions.com

Moonstone Auctions 11 x 10.8 x 6.9mm 4.6 cts Auction #3035347 Gem Rock Auctions

gemsociety.org

Information and educational services for everyone interested in gemstones. For gemologists, hobbyists, jewelers, lapidaries and everyone in between.

crystalmountain.com.au

This Fish Fossil Concretion boasts an exceptional level of quality, rareness, and scientific value. It originates from the Pteronisculus cicatrosus species and was naturally formed approximately 250 million years ago during the Mesozoic Era, specifically the Lower Triassic period, in the Olenekian stage. Found in the Karroo formation of Anaborana, Madagascar, this specimen offers a valuable glimpse into prehistoric marine life. Mine Location: Anaborana, Madagascar   Size Approx: Length: 14.6cmWidth: 7.8cmHeight: 4.8cmWeight: 516 grams

geology.ecu.edu

Geological Sciences faculty in the news: Dr. David Farris was interviewed by WNCT about the earthquake that devastated Turkey and Syria on Monday, February 6, 2023. Dr. David Farris was interviewed by WNCT Department of Geological Sciences Seminar Series Questions: Contact  Dr. Edu Leorri To view past seminars, please contact Lauren Morrison for seminar links […]