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meteorite characteristic > stone meteorite characteristic > chondritic meteorite characteristic > chondrule > ferromagnesian chondrule

ferromagnesian chondrule
subject			fact

ferromagnesian chondrule	is a kind of chondrule
	has definition chondrule with a high abundance of olivine and pyroxene crystals
	has composition ferromagnesian minerals
	has abundance most chondrules are ferromagnesian
chondrule	has diameter usually less than 1 mm but can range from 0.1 to 10 millimeters
	has relative volume 80 % of volume of ordinary and enstatite chondrite and greater than 15 % of most other chondrite groups
	has texture

Kinds of ferromagnesian chondrule :

• barred olivine chondrule (5 facts) (BO chondrule) - chondrule with one or more sets of strongly elongated parallel prismatic olivine crystals
• cryptocrystaline chondrule (5 facts) (C chondrule) - chondrule with extremely fine-grained intergrowths of pyroxene and glass with grain size less than 2 micrometers
• porphyritic olivine chondrule (5 facts) (PO chondrule) - chondrule with porphyritic olivine crytals
• porphyritic olivine-pyroxene chondrule (5 facts) (POP chondrule) - chondrule with a porphyritic mixture of olivine and pyroxene
• porphyritic pyroxene chondrule (5 facts) (PP chondrule) - chondrule with porphyritic pyroxene crytals
• radial pyroxene chondrule (5 facts) (RP chondrule) - chondrule with thin needles of pyroxene radiating from a single point on the edge of the chondrule