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Artinite: Mg2(CO3)(OH)2·3(H2O)
Comments: White, acicular clusters of artinite on matrix. Location: San Benito County, California, USA. Scale: Cluster size 1.3 cm. © Sandro Maggia/Minernet.it
Brucite: Mg(OH)2
Comments: Pearly white, pseudohexagonal crystals of brucite on matrix. Location: Pilcante, Trentino, Italy. Scale: Crystal size 1.6 cm. © Sandro Maggia/Minernet.it
Drysdallite: Mo(Se,S)2
Comments: Metallic, black, submillimeter crystals of drysdallite approximatly 0.1 mm. Location: Western Province, Zambia. Scale: Picthure Size 5 mm. © Sandro Maggia/Minernet.it
Langite: Cu4(SO4)(OH)6·2(H2O)
Comments: Encrustation of small (less than one mm.) sky blue langite crystals, on matrix. Location: Lubietova, Slovakia. Scale: Picture size 1.5 cm. © Sandro Maggia/Minernet.it
Lanthanite-(Nd): (Nd,La)2(CO3)3·8(H2O)
Comments: Beige aggregate of scaly, platy lanthanite-(Nd) crystals. Location: Curitiba, Paranà, Brazil. Scale: 2.5 x 2 cm. © Sandro Maggia/Minernet.it
Laumontite: CaAl2Si4O12·4(H2O)
Comments: White, well developed laumontite crystals up to 1 cm. on matrix. Location: Osilo, Sardegna, Italy. Scale: Specimen size 6 x 4.5 cm. © Sandro Maggia/Minernet.it
Londonite: CsAl4Be4(B,Be)12O28
Comments: A yellow , lustrous, well developed londonite crystal 1.2 cm. on matrix. Location: Antandrokomby, Sahatany valley, Madagascar. Scale: Crystal size 1.2 cm. © Sandro Maggia/Minernet.it
Ludwigite: Mg2Fe+++BO5
Comments: Bright black, radial fibrous aggregates of ludwigite. Location: Brosso mine, Piemonte, Italy. Scale: Sample size 4x3 cm. © Sandro Maggia/Minernet.it
Makatite: Na2Si4O8(OH)2·4(H2O)
Comments: White acicular sprays of makatite crystals in a vug with pink villiaumite. Location: Aris Phonolite, Namibia. Scale: Picture size 2 cm. © Sandro Maggia/Minernet.it
Microsommite: (Na,Ca,K)7-8(Si,Al)12O24(Cl,SO4)2-3
Comments: White acycular microsommite crystals (one mm. long) in small vugs in matrix. Location: Monte Somma - Vesuvio - NA, Campania, Italy. Scale: Picture size 1 cm. © Sandro Maggia/Minernet.it