David K. Joyce

Brazil Minerals, Various

Here is an assortment of unusual Brazilian minerals, mostly from Pegmatite environments.

All prices in Canadian dollars. For payment in US$, deduct 18% or multiply by 0.82.

Click on any of the following thumbnails to view a larger image of the specimen.

Item #16768 Siderite, Quartz, Pyrrhotite, Albite 7.7x4.8x3.4 cm Largest Crystal Size: q-40mm, s-16mm $110.00 Morro Velho Mine Nova Lima, Minas Gerais Brazil A sweet specimen showing sharp, discoidal siderite crystals associated with clear, colourless quartz crystals. These are sprinkled with tiny, sharp pyrrhotite crystals and some sharp clear albite crystals. Classic, long-closed mine!	Item #17215 Greifensteinite, Eosphorite 3.1x3.3x2.0 cm Largest Crystal Size: gr-micro $65.00 Taquaral Seco Mine Itinga, Minas Gerais Brazil Sharp, divergent greifensteinite crystals are on and between eosphorite crystals up to 1.5cm or so. Also tiny tufts of an unknown white acicular mineral. Excellent!	Item #17216 Greifensteinite, Eosphorite 4.3x3.5x2.5 cm Largest Crystal Size: gr-micro $75.00 Taquaral Seco Mine Itinga, Minas Gerais Brazil Many sharp, greifensteinite crystals are between much larger eosphoritwe crystals on this microcline crystal section. Also some very nice tufts of an unknown mineral. Very nice!	Item #17219 Greifensteinite, Eosphorite, zanazziite 6.0x5.8x3.3 cm Largest Crystal Size: x-micro $75.00 Taquaral Seco Mine Itinga, Minas Gerais Brazil Lots of elongated eosphorite crystals on the front of this microcline, lepidolite matrix. The eosphorite crystals are partly encrusted with countless, excellent greifensteinite crystals. As WELL, there are clusters of superb, platy, slightly yellow zanazziite crystals here and there. Really nice specimen!
Item #17225 Greifensteinite, Eosphorite 3.3x2.3x2.2 cm Largest Crystal Size: g-1mm $45.00 Ipe Mine Governador Valadares, Minas Gerais Brazil This specimen is a fully terminated quartz crystal on albite matrix. The termination of the quartz crystal is largely covered with eosphorite and balls of greifensteinite. There are also some needles of elbaite here and there on the piece. Interesting!	Item #20197 Quartz, Dolomite 7.2x6.0x3.5 cm Largest Crystal Size: 72mm $75.00 Morro Velho Nova Lima Minas Gerais, Brazil A sweet specimen of lustrous, gemmy quartz with disc-like, sharp dolomite crystals. Small sulphide crystals are sprinkled here and there. Long closed mine. Displays well!	Item #22199 Epidote 10.1x2.1x2.0 cm Largest Crystal Size: 101mm $65.00 Cappelinha Minas Gerais Brazil Just an exceptional, elongated crystal of dark-green, epidote from a modern Classic location. As you can see, the specimen consists of one larger, terminated crystal with a couple of smaller crystals attached. Very nice! r	Item #22721 Eosphorite, Rischerite 4.9x2.0x1.5 cm Largest Crystal Size: 3mm $40.00 Taquaral Minas Gerais Brazil One side of this quartz shard is encrusted with many sharp eosphorite crystals which have a crust of small roscherite crystals, particularly on the right side of the childrenite group. Not a common phosphate mineral!
Item #24849 Elbaite, Quartz 7.4x4.7x1.8 cm Largest Crystal Size: as above $65.00 Minas Gerais Brazil Here is a flattened, clear quartz crystal that is shot through with dark green elbaite tourmaline crystals. Classic Brazilian pegmatite crystal specimen. s	Item #24940 Quartz 7.3x2.5x3.2 cm Largest Crystal Size: as above $40.00 Conselhiero Mata Minas Gerais Brazil Brazil is the source for many fine quartz crystals. Most have damaged terminations. Here is a nicely terminated milky quartz crystal from this famous area. s	Item #24917 Aquamarine 5.4x3.5x3.9 cm Largest Crystal Size: as above $65.00 Brazil Brazil is famous for beryl-aquamarine crystals. Here is a nicely terminated example. It shows well formed prism faces and a mainly pinacoidal termination, although there are modifying faces around the pinacoid. Probably from Minas Gerais. s	Item #24925 Beryl 3.9x1.6x1.3 cm Largest Crystal Size: as above $75.00 Teofilo Otoni Minas Gerais Brazil For some reason, aquamarine from this and certain other localities are well formed crystals with a tube town the middle. This crystal shows that interesting growth peculiarity. This well formed crystal has a very good termination, first and second order prism faces and a light blue colouration. s
Item #24929 Topaz 2.6x2.4x3.1 cm Largest Crystal Size: as above $55.00 Capelinhas Minas Gerais Brazil A well-formed, colourless topaz crystal from this famous pegmatite area. It has a little abrasion but still looks very good. Nice example! s	Item #25938 Chrysoberyl 1.1x0.9x0.5 cm Largest Crystal Size: as above $75.00 Espirito Santo Minas Gerais Bolivia A gorgeous, small trilling of chrysoberyl! Three criss-crossing gemmy yellow-green crystals on a pedestal of smaller chrysoberyl xls. Very nice example!	Item #25939 Chrysoberyl 1.2x1.2x0.7 cm Largest Crystal Size: as above $95.00 Santa Teresa Espirito Santo, Minas Gerais Brazil A gemmy, yellow-green trilling of chrysoberyl with no matrix. Nice front and back! Classic chrysoberyl location.	Item #25940 Chrysoberyl 1.8x1.5x0.4 cm Largest Crystal Size: as above $75.00 Minas Novas Minas Gerais Brazil Here is a thick-tabular, twinned crystal of chrysoberyl from an interesting locality. Nice form, colour and stria!
Item #25969 Brazilianite 2.1x1.9x1.9 cm Largest Crystal Size: 12mm $75.00 Minas Gerias Brazil Extremely gemmy, light green crystals of brazilianite cover most of the top-front of this feldspar matrix. Well-terminated, beautiful crystals.	Item #25973 Beryl, var. Aquamarine 2.4x0.7x0.7 cm Largest Crystal Size: as above $55.00 Teofilo Otani Minas Gerais Brazil A gemmy, well formed crystal from this phenomenal pegmatite district. Te termination is composed of a couple of pyramidal forms and a very small pinacoid. Very light greenish colour. Beautiful crystal!	Item #26385 Rutile, Quartz 8.8x8.8x2.7 cm Largest Crystal Size: as above $95.00 Minas Gerais Brazil This is an odd mineral specimen. It is a portion of a large, smoky quartz crystal that has been sawn off, roughly parallel to the large face in the photo. The specimen is interesting since it is laced through with hair-like, golden rutile crystals, some up to several cm long. Beautiful as a mineral specimen or as lapidary material!	Item #26702 Beryl, var. Aquamarine 5.2x0.9x0.6 cm Largest Crystal Size: as above $120.00 Teofilo Otoni Minas Gerais Brazil A very nice, long, slender, very light blue, well terminated beryl crystal from the world-famous pegmatite area. Nice crystal!!
Item #26703 Beryl, Var. Morganite 3.7x3.8x2.5 cm Largest Crystal Size: as above $225.00 Galilea Mine Minas Gerais Brazil This is a piece of a larger crystal of the orangey-pink morganite crystals that you have all seen in textbooks and museums. Don't know why it is sawn on one side but it is a highly gemmy, thick, crystal fragment with small crystal sections of elbaite and quartz attached.	Item #26862 Quartz 7.6x5.5x4.8 cm Largest Crystal Size: 9mm $120.00 Minas Gerais Brazil This is an interesting one. It is mostly composed of rose quartz crystals on a matrix of white quartz. Most of the top of the piece is rose quartz terminations with a chalcedony coating of the roase quartz in the center. Different! Unique!	Item #27230 Descloizite 5.0x4.3x2.7 cm Largest Crystal Size: 10mm $40.00 Mina Grande Itacacanambi, Minas Gerais Brazil Now I've never heard of this location and it is not on mindat.org but this specimen comes from a reliable old collection. It is well-formed and lustrous brown crystals on corroded quartz. Different habit than I'm used to seeing from other descloizite localities... No significant associated minerals that I can see. Interesting one!	Item #27654 Euclase 2.0x1.2x1.4 cm Largest Crystal Size: 7mm $50.00 Ouro Preto Minas Gerais Brazil A coulourless, sharp, gemmy euclase crystal is perched atop a cluster of mica crystals. Actually there are two euclase crystals but one is prominent. Nice example from this amazing pegmatite area.