. Guide leaflet. FLUORITE FROM CUMBERLAND, ENGLANDEncrusted with quartz on t he edges and corners of I he cubic crysl als been deposited by evaporation from bodies of water which have intimes past been cut off from the main body of the ocean. The seriesof halite specimens in Case 4 includes many striking examples of largeand well-developed crystals. The most widely distributed mineral in this division is fluorite, thefluoride of calcium. This is essentially a vein mineral and is frequentlyfound associated with the sulphide ores of lead and zinc. The largecubic and octahedral crystals of fluori
. Guide leaflet. FLUORITE FROM CUMBERLAND, ENGLANDEncrusted with quartz on t he edges and corners of I he cubic crysl als been deposited by evaporation from bodies of water which have intimes past been cut off from the main body of the ocean. The seriesof halite specimens in Case 4 includes many striking examples of largeand well-developed crystals. The most widely distributed mineral in this division is fluorite, thefluoride of calcium. This is essentially a vein mineral and is frequentlyfound associated with the sulphide ores of lead and zinc. The largecubic and octahedral crystals of fluorite from all parts of the worldshown in Cases 4 and G, illustrate the very great variation in color. QUARTZ FROM CALIFORNIAA phantom showing one quartz crystal deposited around one previously formed
Size: 1985px × 1258px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1900, booksubjectnatural, bookyear1901
