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Natural mineral galena specimens teaching materials experimental rock samples galena original stone
♣ Different size:
♣ Introduction:
Galena (lead sulfide i.e.,) is a relatively common mineral, which is a sulfide, wherein the ratio of the metal (lead) and the sulfur is 1: 1. It belongs to equiaxed crystal chemical formula PbS, which may also contain to 1% of the silver. Lead is one of the earlier metal lead-zinc ore extracted from human beings out of. It is the softest metals, but also more than one of the major metal, with blue-gray, hardness 1.5, the proportion of 11.34, melting point 327.4 ℃, boiling point 1750 ℃, malleable good, easily with other metals (such as zinc, tin, antimony, arsenic etc.) made of an alloy. Galena often showed perfect crystal cube, but sometimes there are flat-topped pyramid-shaped or bone-like crystals. It has a lead-gray color, hardness of 2.5, a high density of 7.4 to 7.6 g / cc, a metallic luster.
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1.Warm service ,proffesional reply .we will give you best choice reply base pon our 30 years international export experience .
2.100% Direct factory .
3.We specialize in Teaching and lab equipment manufacture .
4.We could make from raw material to finished product.
5. Responsibility is our strong point .
6.Sample policy :Not free ,sample fee will be refund when the decent order received by us .
♣ STONES WE OFFER:
Sedimentary rocks collection
Metamorphic rocks collection
Igneous rocks collection
Silicates ,Oxides,Hydroxides,Sulfurs,......
Exported more than 23 countries,such as Germany,Japan,UK,France,Belgium,Australia,
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New Zealand,Indonesia, Egypt, Syria, Iran, Malaysia, Thailand, Hong Kong, Spain, Turkey,ect.
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♣ Brief introduction:
We are factory specializing in the manufacture and export of all kinds of Microscope,Stone specimen ,microtome,human model,prepared slides and other teaching and lab inquipment for more than 10years. We can provide you with high quality products
at the best price, We have our own technician and experts to produce, They are available in all parts and can be customized according to Customers Specification.
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