Hidalgoite. Christiana Mine, Revier Kamariza, Lavrion, Grèce FOV=4 mm Copyright UlrichW
Rhodochrosite on Quartz from Alma, Colorado
An opalised Belemnite fossil from the Jurassic period, Cooper Pedy, South Australia. Similar to the modern squid, the Belemnite is an extinct marine. cephalopod. From its aragonite phragmacone would emerge arms equipped with small hooks for grabbing prey passing in the prehistoric waters.
Mongolia. The stone, (5 ft high, weighing six tons) formed mostly of fluorite mineral, glows green in the dark and in China is prized more highly than diamonds. The finders took three years to grind the raw gem down to its pearl shape. It has gone on show in Hainan, southern China, to attract buyers and have measurements taken for a world record bid. It is amazing and glows a blue green in the dark,' remarked one show organiser.
Ježekite, Na8[(UO2)(CO3)3](SO4)2·3H2O, Geschieber vein, Svornost Mine, Jáchymov, Jáchymov District, Krušné Hory Mts, Karlovy Vary Region, Bohemia, Czech Republic. Fov 2,5 mm. Copyright: Pavel Škácha, Czechmin. Not to be confused with Ježekite (of Slavik). IMA 2014-079
Cyprine, Ca10Mg2Al4(SiO4)5(Si2O7)2(OH)4, blue vesuvianite, Ovstebo, Kleppan, Sauland, Hjartdal, Telemark, Norway