[square] v.1/n.4 Colombian Emerald, Natrolite (OR), Benstonite (IL), Langban (Sweden) $30 [square] v.8/n.5 Characterization of New Species, Twinning, Axinite (Brazil), Green River (WY) [square] v.9/n.4 Elmwood mine (TN), Chester (MA), Pyrite crystal forms [square] v.9/n.5 Kammererite (Turkey), Afghanistan pegmatites, Chuquicamata, Chile [square] v.9/n.6 Libethenite (Zambia), Quartz/Pyrite (Washington), Hydroboracite
(CA) [square] v.10/n.1 Hydroxylherderite (Brazil), References on American Minerals [square] v.10/n.2 Jeffrey mine (Quebec), Alpine Rodingites, Fluorite (Germany) [square] v.10/n.3 Taewha mine (Korea), Quartz Japan-law Twins, Bancroft (Ontario) [square] v.10/n.5 Thomas and Wah Wah Mountains (UT) Topaz, Red Beryl, Etc.
More than 230 different types of boron minerals are known in nature, but the number having commercial importance is limited to the following: tincal, colemanite, kernite, ulexite, pandermite, boracite, szaibelyite and hydroboracite
. Commonly existing boron minerals in Turkey are tincal, colemanite and ulexite.