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Limonite has been known to pseudomorph other minerals such as pyrite, meaning it replaces a crystal of pyrite with limonite but keeps the shape of the pyrite crystal.
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www.galleries.com/Minerals/Oxides/LIMONITE/LIMONITE.htm
www.galleries.com/Minerals/Oxides/LIMONITE/LIMONITE.htm
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For instance, limonite, which has no crystal form of its own, is sometimes found in the shape of a perfectly bounded pyrite crystal. This unusual happening occurs because the original crystal of pyrite has become decomposed through the effects of water and has been replaced by limonite.
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www.probertencyclopaedia.com/cgi-bin/res.pl?keyword=Lim...
www.probertencyclopaedia.com/cgi-bin/res.pl?keyword=Limonite&offset=0
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Are when you can see the external crystal shape as a shadow on the inside of a crystal. For example, you can have a quartz crystal and when you view it ... Quartz crystals and formations in their natural state can be stained reddish brown from iron, encrusted with clay or coated in tougher minerals like limonite or calcium.
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www.mexicogemstones.com/glossary3.htm
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Limonite has been known to form pseudomorphs after other minerals such as pyrite, meaning that the chemical weathering transforms the crystal of pyrite into limonite but keeps the external shape of the pyrite crystal.
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www.answers.com/topic/limonite
www.answers.com/topic/limonite
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Would you like to learn more about limonite? Click HERE ... STREAK | LUSTER | CLEAVAGE | HARDNESS | CRYSTAL SHAPE | SPECIFIC GRAVITY | OTHER PROPERTIES |
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geology.csupomona.edu/alert/mineral/idlimonitenm.htm
geology.csupomona.edu/alert/mineral/idlimonitenm.htm
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Limonite - Wikipedia, the free encyclopedia
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Limonite is an ore consisting in a mixture of hydrated iron(III) oxide-hydroxide of varying composition. The generic formula is frequently written as FeO(OH)·nH 2 O, although this is not entirely a...
en.wikipedia.org/wiki/Limonite
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Lemurian Quartz Crystal (7) ... Ruby Quartz Crystal- Heart Shape ... Limonite In Clear Quartz Crystal~ Window...
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stores.ebay.com/Rachel-Blues-Crystals
stores.ebay.com/Rachel-Blues-Crystals
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Authigenic Limonite, Limonite In its true form, does not have a crystal shape. Most of the time Limonite is formed from a mineral containing iron which decomposes and is turned into Limonite. Limonite is mostly clay but also has phosphates and silica also.
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education.uncc.edu/cmste/summer%20ventures/2010%20Rocks...
education.uncc.edu/cmste/summer%20ventures/2010%20Rocks%20and%20Minerals/The%20Formation%20of%20Limonite%20After%20Pyrite.pdf
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, meaning that the chemical weathering transforms the crystal of pyrite into limonite but keeps the external shape of the pyrite crystal. It has also been formed from other iron oxides, hematite and magnetite; the carbonate siderite...
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www.absoluteastronomy.com/topics/Limonite
www.absoluteastronomy.com/topics/Limonite
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