University of Texas at El Paso

                                UTEP Digital Spectral Library 

                                             Descriptions and Plots             

 

Spectral libraries are a vital part of the knowledge infrastructure and the UTEP- PACES center participates in this activity.  Detailed sample descriptions are found in the UTEP teaching sample library.  The quickly developing Arid Lands Spectral Library is presently linked to the web of P.C. Goodell.

 

Plot

Sample Name

Description
11 obsidian obsidian
20 pegmatite quartz with white albite and pink orthoclase, Organ Mt., NM
21 metamorphic garnet from Castner Formation, chaos zone, Transmountain Road, Franklin Mtns., El Paso, TX
22 chalk  
23 hydrothermal-mesothermal/epithermal core of quartz from vein
24 ash flow tuff- slightly welded lithic rich ash flow tuff, Chihuahua, Mexico
26 metamorphic rip-up from Castner Formation, Franklin Mountains, El Paso, TX
27 garnet garnet in skarn, sheare, Orogrande, NM
28 metamorphic wollastonite with garnet from New York
29 pyrite pyrite veinlet in altered rock
30 calcite and limonite gossan calcite and limonite gossan
31 sedimentary + hydrothermal liesagang bands in sandstone
32 metamorphic diopside and garnet from New York
33 metamorphic garnet, diopside, and wollastonite from New York
34 Hematite
35 ash flow tuff- welded welded tuff from La Mesa Formation, Peņa Blanca
36 metamorphic garnet and wollastonite from New York
37 hydrothermal- sea floor smoker barite deposit from ore in Sonora, Mexico
38 pilow lava? pilow lava
39 hydrothermal- alteration + scolecite, prehemite, altered andesite, traprock from eastern US
40 metamorphic lithic dike in Castner Formation
41 pegmatite muscovite with inclusions of pyrolusite
42 dalolite and calcite dalolite and calcite in altered andesite
43 garnet red garnets in gneiss
44 evaporite Sodium Chloride
45 quartz and chacedony quartz and chacedony in altered andesite
46 hydrothermal- vein deposit coarse brown crystalline quartz with sulfide and quartz veins
47 weathered sample weathered sample from Castner Formation, Franklin Mountains, El Paso, TX
49 dendrites and limonite dendrites and limonite on skarn, Orogrande, NM
50 andesite andesite from El Paso, TX
51 igneous rock  
53 skarn magnetite and pyrite on skarn replacement around chert, Orogrande, NM
54 pyrrholite massive pyrrholilte bounded by slickensides
55 hydrothermal- Mississippi Valley type, see samples 75, 162 barite and fluorite on limestone
56 hydrothermal- epithermal coarse brown calcite on grey limestone with white calcite and brown limonite
57 evaporite identical samples= #104 gypsum with alternating clay, near Carlsbad, NM
58 limonite gossan limonite gossan
59 tuff siliceous tuff from west Texas
60 metamorphic similar samples= #111, #124 garnet bearing pyroxenite, Gore Mountain, NY (See sample 111)
62 pyrrholite pyrrholite
63 oxidation crysocolla
64 pyroxenite pyroxenite
65 Muscovite Muscovite bearing
67 ash flow tuff -geode geode with water, Buenaventura, Chihuahua
68 sedimentary black chert in black limestone, Hueco Mountains, west TX
69 volcanic ash volcanic ash around root casts, Chihuahua, Mexico
70 microgranite microgranite from Fusselman Canyon, El Paso, TX
72 mineral- oxide  
73 ulexite ulexite from Boron, CA
74 hydrothermal silicified metamorphic rock with calcite vein
75 Mississippi Valley  see samples #55, 162 fluorite, barite, quartz on silicified limestone with minor copper and lead oxides from Bingham, NM
76 pegmatite granite
78 hydrothermal- alteration andesite with anydioidal fillings and green montronite
79 chert grey chert in grey limestone, Hueco Mountains, El Paso, TX
80 quartz quartz crystals on matrix, Arkansas
81 evaporite rock salt with roof bolt from Carlsbad, NM
82 Barite Barite bearing sediment
83 limonite gossan limonite gossan with calcite vugs
84 skarn garnet (grossularite), Santa Rita, NM
85 tuff siliceous tuff from west Texas
86 hydrothermal- epithermal paligorskite, La Curita Mine, Tamoris, Chihuahua
87 chert chert
88 talc talc from Van Horn district, west Texas
89 hydrothermal-  Mississippi Valley type giant calcite scalenohedron, tri state
90 muscovite muscovite with inclusions of hematite and pyrolusite (See sample 41)
91 hydrothermal-  Mississippi Valley type  
92 hydrothermal-  Mississippi Valley type giant fluorite crystal from Rosiclaire, Ill
93 galena and sphalerite galena and sphalerite on skarn
94 garnet and quartz garnet and quartz on skarn, Santa Rita, NM
95 galena and sphalerite with garnet massive galena and sphalerite with garnet on skarn, Santa Rita, NM
97 pyrrholite pyrrholite
98 gabbro and anorthosite gabbro and anorthosite
99 hydrothermal-  Mississippi Valley type  
100 chacolpyrite chacolpyrite
101 ash flow tuff-  obsidian, identical samples=#125 obsidian and vitrousphyre, San Marcial, NM
102 ash flow tuff-  obsidian, similar to samples #101 & #125  
103 chalk
104 evaporite gypsum with alternating clay, Yeso Formation, near Carlsbad, NM
105 sedimentary light grey limestone with dark grey chert
106 hydrothermal, Mississippi Valley type giant calcite specimen from Missouri
107 granite pegmatite rubellite tourmaline in lepidolite from Pola, California
108 quartz breccia quartz breccia with other vein material
109 ash flow tuff-  geodes  
110 ash flow tuff-  geodes quartz, Fe and Mn oxides in lithophysaal cavity, Peņa Blanca, NM
111 metamorphic garnet in pyroxenite, Gore Mountain, NY (See sample 60)
112A hydrothermal  
112 evaporite  
113 evaporite  
114 pegmatite giant biotite specimen
115 sulfide massive sulfide from Newfoundland
116 ash flow tuff- obsidian, vitrophyre obsidian and vitrousphyre
117 breccia breccia with slickensides
118 skarn garnet and quartz on skarn, Santa Rita, NM
119 pyroxenite pyroxenite
120 amphiolite amphiolite (ophiolite) altered to albite, Newfoundland
121 chacolpyrite chacolpyrite in quartz with slickensides
122 hydrothermal, Mississippi Valley type large calcite scalenohedron from Tri state area
123 metamorphic talc from Van Horn talc distric, west Texas (See sample 88)
124 metamorphic garnet, pyroxene and anorthite, Gore Mountain, NY (See sample 111)
125 ash flow tuff obsidian and vitrousphyre, San Marcial, NM
130 tectosilicate clinoplilolite tuff, East Gate, Nevada (See sample 101)
132 jarosite jarosite from Peņa Blanca, NM
133 nitrate mineral classification !! sodium nitrate in glass bottle from Chile
134 hemimorphite  
135 zeolite variation 1
136 zeolite variation 2
137 zeolite variation 3
138 welded tuff  
139 pyrite  
151 metamorphic  
162 hydrothermal-  Mississippi Valley type  
164 pegmatite  
200 copper and malachite copper and malachite from NM
201 hydrothermal-  Mississippi Valley type  
202A hydrothermal-  Mississippi Valley type  
202B hydrothermal  
251 sedimentary  
var1 gypsum variation 1  
var2 gypsum variation 2  
rbg Red Bluff Granite  variation 1
rgb Red Bluff Granite  variation 2
tr Thunderbird Rhyolite  
sg slag  

Private collection
jd1 jade  variation 1
jd2 jade  variation 2
lalaz lapis lazuli  
uqtz uranium quartz  
synqt synthetic quartz variation 1
synqt synthetic quartz  variation 2
 

                                                *Spectral library was created by Lizbeth Guijarro with the collaboration of Dr. Philip Goodell and Joshua Villalobos.   This work  was  

                                     supported by the Model Institution of Excellence (MIE) program and the Pan American Center for Instructional Technology (PACES)  

                                                program, at the University of Texas at El Paso.