GEOLOGICAL ODDITIES,

SPECIALTY MINERALS and
SINGLE CRYSTALS


GEOLOGICAL ODDITIES ARE RARE FORMATIONS 


GEOLOGICAL ODDITIES
Sizes are approximate and specimens are subject to availability.
ITEM#
NAME
DESCRIPTION
PRICE EACH (unless stated otherwise)
2272-01I
Meteorite
Iron Meteorite from the Henbury Crater in Northern Territory, Australia. Approx. 1/2", contained in attractive display box.
$19.00
4020-01
Dendrites
deposits of manganese oxide which have crystallized in branching patterns on limestone, approx. 2 x 2" - 1" x 3". Germany
$6.95
4025-01
Dike Rock, various sizes
 
$10.80
4030-01
Faulted Sandstone, various sizes
Slabs of laminated sandstone, showing the offset of laminae along the fault plane. 
$6.25
4060-02
Mexico geode
polished 3" half
$16.00
4076-01
Mantle Xenolith
 angular masses of olivine in gray-black basalt
 CALL
4082-01
Porphyry
 
CALL 
4085-01
Ptygmatic Fold
 
CALL 
4090-01
Ripple Marks
Caused by water moving back and forth over sand w/ sufficient force to mold the sand into ripples. 
$13.00
4130-02
Slickensides
Naturally polished and grooved rock surfaces resulting from friction along a fault plane.   3" x 4"
 CALL
4190-01
Ventifacts, various sizes
 Rocks polished and faceted distinctly by the impact of windblown sand and dust.
 CALL
9800-01A
Coprolite
fossilized animal dung, approx. 1"
$7.00
9800-01B
Coprolite
 fossilized animal dung, approx. 2"
 $15.00
9800-01C
Coprolite
 fossilized animal dung, approx. 3 to 4"
$20.00
M100
Break your own Geodes
2 pk of geodes
$4.00/ per 2 PK
 
Pseudomorphs
after gypsum, pseuodohexagonal rosettes & crystal groups, avg. 2" x 2"
$9.00

SPECIALTY MINERALS

ITEM #
NAME
DESCRIPTION
PRICE EACH (unless stated otherwise)
SM001 Aragonite White branching crystal group, fluorescent under UV light. 2 3/4" to 4". Mexico. $14.00
SM002 Azurite Brilliant blue, small to drusy crystals  on quartz, etc. from Morocco. 2" to 3". $15.00
SM003
SM004
SM005
Calcite (Iceland Spar) Clear rhombic cleavage showing double refraction. Mexico. 1" x 1"              $2.00
1 1/2 x 1 1/2"   $6.00
2" x 3"            $25.00
SM006 Copper Ore Cut and finished slab of bright, native copper ore, average size 2" x 3". $20.00
SM007 Cordierite (Iolite) Polished 8mm cube showing bright color variation with crystallographic direction. (Dichroism) $20.00
SM008 Fluorite Octahedral cleavages, various colors, up to 3/4". pack of 5 $8.00/ per 5 PK
SM009 Forsterite (Olivine Bombs)  Dunite mantle xenolith fragments. Arizona. $9.95
SM010 Gold Pure native gold nuggets. Avg. size 1/8" to 1/4" $25.00
SM011 Magnetite (Lodestone) Natural magnet, 
2"x 2" to 2"x3" Utah.
$9.00
SM012
SM013
SM014
Manganese Nodules Black nodules showing exterior and interior surfaces. Pacific Ocean floor. ½" to 1", 3pk, $12.00
2"                   $25.00
2" to 3"           $42.00
SM015 Mica Phlogopite mica book, triboluminescent, emits sparks when hammered. 1 1/2" to 3". Canada. $12.80
SM016 Perthite Microcline cleavages, perthitic texture, 2" to 3 1/2". Perth. Canada. CALL
SM017
SM018
Pyrite Shiny, brass like, cubic and pyritohedral crystal clusters. Peru. 1 1/2"             $10.00
3"                   $36.00
SM019 Quartz (Amethyst) Rich purple clusters of crystals. 2" to 3". Brazil, etc. $16.00
SM020
SM021
Quartz (Geode) Cut and polished geode halves, agate rims, crystal interiors. Mexico. 2 1/2"             $14.00
4"                   $29.00
SM022 Quartz (Rock Crystal) Clear crystal clusters, great form and terminations, avg. cluster size 2 3/4"-4" CALL
SM023 Quartz (Smoky) Sharp crystal clusters, brown induced by irradiation, avg. size 
2 1/4" to 3 1/2"
$50.00
SM024 Scapolite (Meionite) Metamorphic mineral, brilliant yellow fluorescence under longwave UV light. 2"x3". Quebec. $20.00
SM025 Silver (in display box) Pure native silver wires & clusters. 1/2" to 3/4".  Australia. $21.00
SM026 Ulexite (TV stone) Fiber optic, cut & finished samples, 1", California. $6.95
SM027 Willemite Zinc silicate, fluoresces green under shortwave UV light. 
2 1/2" x 3 1/2".  New Jersey.
$26.00
SM028 Zeolite Hydrous aluminosilicate, mixed varieties, 2 1/4" to 3". India. $16.00

SINGLE CRYSTALS

ITEM #
NAME
DESCRIPTION
PRICE EACH (unless stated otherwise)
SX001 Almandine Garnet group, sharp, red, dodecahedral, isometric. Alaska. CALL
SX002 Amazonite Feldspar group, blue-green, microcline, triclinic, avg.3/4". Colorado. $12.50
SX018 Apatite Asparagus Stone, single, terminated crystal approx 5/8" to 3/4", each $12.00
SX003 Aragonite Gray to brown, orthorhombic, pseudohexagonal twinning, 3/4" to 1 1/2". Spain. $6.00
SX0018 Aragonite Reddish brown crystal clusters and rosettes showing pseudohexagonal twinning. 1.5" to 2".  Morocco. $12.00
SX004 Corundum (Ruby) Deep red, hexagonal, 3/8", Madagascar. $8.50
SX005 Diamond Natural, isometric, various forms, 2-4mm. Africa,China,or Australia. $20.00
SX006 Dolomite Pink saddle shaped crystal groups, 2" to 3" $9.00
SX007 Grossular Garnet Group; single and intergrown dodecahedral crystals, isometric, 3/4"-1". Mexico. $9.50
SX008 Magnetite Dark, octahedral, isometric, 3/8"-1/2". Brazil or Africa CALL
SX009
SX010
Pyrite (Cubic) Sharp, cubic, isometric with metallic luster. Spain. 3/8"                  $6.00
1/2"                $12.50
SX013 Pyrite (Pyritohedral) Pyritohedral, isometric, 3/8". Spain. $11.00
SX014 Quartz (Rock Crystal) "Herkimer diamond;" doubly terminated, hexagonal, 3/8"-1/2".  New York. $9.90
SX015 Quartz (Rock Crystal) Singly terminated, hexagonal, 1 ½" to
2 ¼". Arkansas.
$4.00
SX016 Staurolite Twinned, brown, orthorhombic, 3/8"-1/2".  Madagascar. $8.00
SX017 Zircon Glassy, brown, fluorescent, tetragonal, 3/8". Brazil $16.00

 
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