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Flagstaffite

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Flagstaff, Coconino Co., Arizona, USA
© 2007, JGW




Formula:
C
 
10
H
 
22
O
 
3
System:Orthorhombic
This page provides mineralogical data about Flagstaffite.

Classification of Flagstaffite

IMA status:Valid - first described prior to 1959 (pre-IMA) - "Grandfathered"
Strunz 8th edition ID:9/B.02-80
Nickel-Strunz 10th (pending) edition ID:10.CA.10

10 : ORGANIC COMPOUNDS
C : Miscellaneous Organic Minerals
A : Miscellaneous Organic Minerals
Dana 8th edition ID:50.4.3.1

50 : ORGANIC COMPOUNDS
4 : Miscellaneous
Hey's CIM Ref.:32.8

32 :
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Type Occurrence of Flagstaffite

Type Locality:Flagstaff, Coconino Co., Arizona, USA
Year of Discovery:1920
Geological Setting of type material:alluvial debris washed down from nearby mountains, in buried tree trunks.

Crystallography of Flagstaffite

Crystal System:Orthorhombic
Cell Parameters:a = 18.5Å, b = 22.6Å, c = 11Å
Ratio:a:b:c = 0.819 : 1 : 0.487
Unit Cell Volume:V 4,599.10 ų (Calculated from Unit Cell)

Optical Data of Flagstaffite

Type:Biaxial (+)
RI values: nα = 1.505 nβ = 1.512 nγ = 1.524
2V:Measured: 77° , Calculated: 76°
Maximum Birefringence:δ = 0.019

Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:Low
Dispersion:strong

Chemical Properties of Flagstaffite

Formula:
C
 
10
H
 
22
O
 
3
Essential elements:C, H, O
All elements listed in formula:C, H, O

Relationship of Flagstaffite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
10.CA.05Refikite
C
 
20
H
 
32
O
 
2
10.CA.15Hoelite
C
 
14
H
 
8
O
 
2
10.CA.20Abelsonite
Ni(C
 
31
H
 
32
N
 
4
)
10.CA.25Kladnoite
C
 
6
H
 
4
(CO)
 
2
NH
10.CA.30Guanine
C
 
5
H
 
5
N
 
5
O
10.CA.30Tinnunculite
C
 
10
H
 
12
N
 
8
O
 
8
10.CA.35Urea
CO(NH
 
2
)
 
2
10.CA.40Uricite
C
 
5
H
 
4
N
 
4
O
 
3
Related Minerals - Hey's Index Grouping:

- +
32.1Evenkite
C
 
21
H
 
44
32.2 Fitchtelite
32.3Simonellite
C
 
19
H
 
24
32.4Kratochvílite
C
 
13
H
 
10
32.5Idrialite
C
 
22
H
 
14
32.6Carpathite
C
 
24
H
 
12
32.7Refikite
C
 
20
H
 
32
O
 
2
32.9Hoelite
C
 
14
H
 
8
O
 
2
32.10Kladnoite
C
 
6
H
 
4
(CO)
 
2
NH
32.11Acetamide
CH
 
3
CONH
 
2
32.12Guanine
C
 
5
H
 
5
N
 
5
O
32.13Urea
CO(NH
 
2
)
 
2
32.14Uricite
C
 
5
H
 
4
N
 
4
O
 
3
32.15Abelsonite
Ni(C
 
31
H
 
32
N
 
4
)

Other Names for Flagstaffite

Synonyms:
Terpin Hydrate
Other Languages:
German:Flagstaffit
Simplified Chinese:柱晶松脂石
Spanish:Flagstaffita

Other Information

Health Warning:No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for Flagstaffite

Reference List:

- +
Guild, F.N. (1920), Flagstaffite, a new mineral from AZ: American Mineralogist: 5: 169-172.

Guild, F.N. (1921), The identity of flagstaffite and terpin hydrate, American Mineralogist: 6, 133-135.

Guild, F.N. (1922), Flagstaffite, a new Arizona mineral, and its identity with terpin hydrate (abs.), Science: 55: 543.

Strunz, H. & B. Contag (1965), Evenkite, idrialite, and refikite (abs.), American Mineralogist: 50: 2109-2110.

Internet Links for Flagstaffite

Search Engines:
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  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Flagstaffite details from Handbook of Mineralogy (PDF)
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    • Localities for Flagstaffite

    The map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.
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    (TL) indicates type locality. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
    USA
     
    • Arizona
      • Coconino Co.
    		Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 222; Guild, F.N. (1920), Flagstaffite, a new mineral from AZ, Am.Min.: 5: 169-172; Guild, F.N. (1921), The identity of flagstaffite and terpin hydrate, Am.Min.: 6, 133-135; Guild, F.N. (1922), Flagstaffite, a new Arizona mineral, and its identity with terpin hydrate (abs.), Science: 55: 543; Strunz, H. & B. Contag (1965), Evenkite, idrialite, and refikite (abs.), Am.Min.: 50: 2109-2110.
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