Opal R060650 - RRUFF Database: Raman, X-ray, Infrared, and Chemistry

Opal R060650

Name: Opal
RRUFF ID: R060650
Ideal Chemistry: SiO₂·nH₂O
Locality: Idaho, USA
Source: Gemological Institute of America 6029 [view label]
Owner: RRUFF
Description: Orange-brown glassy fragment, variety is opal-CT, based on its X-ray diffraction pattern
Status: The identification of this mineral has been confirmed by X-ray diffraction and chemical analysis

Quick search: [ All Opal samples (9) ]

CHEMISTRY

RRUFF ID:	R060650.2
Sample Description:	Microprobe Fragment
Measured Chemistry:	Si_1.00O₂ · 0.18H₂O
Microprobe Data File:	[ Download Excel File ]

RAMAN SPECTRUM

RRUFF ID:

Sample Description:

Unoriented sample

Instrument settings:

Thermo Almega XR 532nm @ 100% of 150mW

DOWNLOADS:

	Raman Data (Processed)
	RRUFF File
	Raman Data (RAW)
	RRUFF File

POWDER DIFFRACTION

RRUFF ID:

R060650.1

Sample Description:

Powder

File Type Information

Output file from the Bruker D8 Advance instrument. Includes device headers and XY data.

DOWNLOADS:

	X-ray Data (XY - RAW)
	RRUFF File

REFERENCES for Opal
Petruk W, Farrell D M, Laufer E E, Tremblay R J, Manning P G (1977) Nontronite and ferruginous opal from the Peace River iron deposit in Alberta, Canada, The Canadian Mineralogist, 15, 14-21 [view file]
Guthrie G D, Bish D L, Reynolds R C (1995) Modeling the X-ray diffraction pattern of opal-CT, American Mineralogist, 80, 869-872 [view file]
Nagase T, Akizuki M (1997) Texture and structure of opal-CT and opal-C in volcanic rocks, The Canadian Mineralogist, 35, 947-958 [view file]
Rodgers K A, Hampton W A (2003) Laser Raman identification of silica phases comprising microtextural components of sinters, Mineralogical Magazine, 67, 1-13 [view file]
Smith B Y, Turner S J, Rodgers K A (2003) Opal-A and associated microbes from Wairakei, New Zealand: the first 300 days, Mineralogical Magazine, 67, 563-579 [view file]
Ilieva A, Mihailova B, Tsintsov Z, Petrov O (2007) Structural state of microcrystalline opals: a Raman spectroscopic study, American Mineralogist, 92, 1325-1333 [view file]
Pewkliang B, Pring A, Brugger J (2008) The formation of precious opal: Clues from the opalization of bone, The Canadian Mineralogist, 46, 139-149

REFERENCES for Opal

Petruk W, Farrell D M, Laufer E E, Tremblay R J, Manning P G (1977) Nontronite and ferruginous opal from the Peace River iron deposit in Alberta, Canada, The Canadian Mineralogist, 15, 14-21 [view file]

Guthrie G D, Bish D L, Reynolds R C (1995) Modeling the X-ray diffraction pattern of opal-CT, American Mineralogist, 80, 869-872 [view file]

Nagase T, Akizuki M (1997) Texture and structure of opal-CT and opal-C in volcanic rocks, The Canadian Mineralogist, 35, 947-958 [view file]

Rodgers K A, Hampton W A (2003) Laser Raman identification of silica phases comprising microtextural components of sinters, Mineralogical Magazine, 67, 1-13 [view file]

Smith B Y, Turner S J, Rodgers K A (2003) Opal-A and associated microbes from Wairakei, New Zealand: the first 300 days, Mineralogical Magazine, 67, 563-579 [view file]

Ilieva A, Mihailova B, Tsintsov Z, Petrov O (2007) Structural state of microcrystalline opals: a Raman spectroscopic study, American Mineralogist, 92, 1325-1333 [view file]

Pewkliang B, Pring A, Brugger J (2008) The formation of precious opal: Clues from the opalization of bone, The Canadian Mineralogist, 46, 139-149