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@mexporg.bsky.social Oct 8, 2026, 8:54 PM

Wires of native #Silver from Imiter, Morocco.

FOV 1 cm

#mineral #crystal #element #mineralogy #mineralexpert #ore

@mexporg.bsky.social Sep 24, 2026, 6:49 AM

Dark grain of #Gadolinite in feldspar from mixed LCT-NYF pegmatite Høydalen, Norway.

FOV 2 cm

#MinCup26 #MinCup #mineral #crystal #mineralogy #REE #mineralexpert

@mexporg.bsky.social Sep 23, 2026, 9:46 AM

Nice #Halite cluster from Inowroclav, Poland.

Size 8 cm

#MinCup26 #MinCup #mineral #crystasl #mineralogy #mineralexpert

@mexporg.bsky.social Sep 22, 2026, 9:18 PM

Classic brown #Pyromorphite from Friedrichsegen Mine, Bad Ems, Germany.

#MinCup26 #MinCup #mineral #crystal #mineralogy #mineralexpert

@mexporg.bsky.social Sep 22, 2026, 8:18 PM

Uncommon type and color of #Pyromorphite from Daoping Mine, Guangxi, China.

#MinCup26 #MinCup #mineral #crystal #mineralogy #mineralexpert

@mexporg.bsky.social Sep 19, 2026, 4:49 PM

Aggregate of blue tabular #Kyanite crystals from Ústup u Olešnice, Czech Republic.

Size 10 x 7 cm

#MinCup26 #MinCup #mineral #crystal #mineralogy #mineralexpert

@mexporg.bsky.social Sep 17, 2026, 9:23 PM

Perfect deep blue #Azurite crystal from Milpilas, Sonora, Mexico.

#MinCup26 #MinCup #mineral #crystal #mineralogy #mineralexpert

@mexporg.bsky.social Sep 17, 2026, 8:15 AM

Famous "feet" made of #Malachite core and #Azurite rim from China.

#MinCup26 #MinCup #mineral #crystal #mineralogy #mineralexpert

@mexporg.bsky.social Sep 16, 2026, 7:45 PM

#Cassiterite is critical ore of tin and very interesting and highly aesthetic mineral at the same time.

Check out our detailed Cassiterite overview:

#MinCup26 #MinCup #mineral #crystal #mineralogy #mineralexpert #ore

mineralexpert.org/article/cass...

@mexporg.bsky.social Sep 16, 2026, 1:29 PM

Big flakes of #Graphite from Velké Tresné, Czech Republic.

Size 11 cm

#MinCup26 #MinCup #mineral #crystal #mineralogy #mineralexpert

@mexporg.bsky.social Sep 16, 2026, 10:49 AM

Perfect crystal of #Cassiterite on matrix from Krásno, Czech Republic.

FOV 3 cm

#MinCup26 #MinCup #mineral #crystal #mineralogy #mineralexpert #tin #ore

@mexporg.bsky.social Sep 15, 2026, 1:53 PM

Rare primary (!) #Malachite on #Chrysocolla from DR Congo.

#MinCup #MinCup #mineral #crystal #mineralogy #mineralexpert

@mexporg.bsky.social Sep 15, 2026, 6:28 AM

Nice (and large!) botryoidal #Chrysocolla from Katanga, Congo.

#MinCup26 #MinCup #mineral #crystal #mineralogy #mineralexpert #copper

@mexporg.bsky.social Sep 14, 2026, 11:10 AM

Monster #Gadolinite from pegmatite near Evje, Norway.

Evje museum specimen.

#MinCup26 #MinCup #mineral #crystal #mineralogy #mineralexpert #pegmatite

@mexporg.bsky.social Sep 14, 2026, 7:07 AM

Well shaped #Gadolinite crystal from Slobrekka, Iveland, Norway.

Evje museum specimen.

#MinCup26 #MinCup #mineral #crystal #mineralogy #mineralexpert #pegmatite

@mexporg.bsky.social Sep 13, 2026, 5:37 PM

The common rock salt #Halite has many interesting features, not just taste. Check our mineral overview for more details and photos:

#MinCup26 #MinCup #mineral #crystal #mineralogy #mineralexpert

mineralexpert.org/article/hali...

@mexporg.bsky.social Sep 13, 2026, 4:52 PM

Slightly green colored #Halite from Inowroclav, Poland.

Size 20 x 8 cm

#MinCup26 #MinCup #mineral #crystal #mineralogy #mineralexpert

@mexporg.bsky.social Sep 13, 2026, 7:44 AM

Typical skeletal cubes of fast growing #Halite from Inowroclav, Poland.

Size 15 x 10 cm

#MinCup26 #MinCup #mineral #crystal #mineralogy #mineralexpert #salt #rocksalt

@mexporg.bsky.social Sep 12, 2026, 2:55 PM

Excellent #Pyrrhotite crystal from the tungsten mine in the Felbertal, Hohe Tauern, Austria.

#MinCup26 #MinCup #mineral #crystal #mineralogy #mineralexpert #sulfide

@mexporg.bsky.social Sep 12, 2026, 10:17 AM

Detail of rare #Cylindrite from Poopo, Bolivia.

FOV 3 cm

#MinCup26 #MinCup #mineral #mineralogy #crystal #mineralexpert