ROCKS

A rock is a natural solid composed of multiple crystals of one or more minerals.  Many rocks contain crystals of individual minerals but, a rock itself does not have an overall crystalline structure.  However, on this page you will also find our lapidary specimens.

(CLICK ON THUMBNAIL FOR LARGER VIEW)
RHODONITE
(MANGANESE IRON MAGNESIUM SILICATE)
from CALIFORNIA

Occurs in schists and in manganese ore bodies.

3" x 4 1/4" x 2 1/2"

SOLD
PICTURE JASPER
(VARIETY OF CRYPTO-CRYSTALLINE QUARTZ -SILCON OXIDE)
from UTAH

Picture Jaspers show a combination of patterns such as banding or color variations that result in what appear to be  "scenes or images" on a cut section.

5" x 4 1/4" x 4 1/2"

$20.00



PICTURE JASPER
(VARIETY OF CRYPTO-CRYSTALLINE QUARTZ -SILCON OXIDE)
from UTAH

Picture Jaspers show a combination of patterns such as banding or color variations that result in what appear to be  "scenes or images" on a cut section.

4 1/8" x 2 3/4" x 1 5/8"

$10.00

RAINBOW OBSIDIAN
(VOLCANIC SILICA GLASS)
from UTAH

Obsidian is the result of rapid cooling of volcanic lava coming in contact with water.  It can contain air bubbles that are aligned along layers created as the molten rock was flowing that create interesting effects such as Rainbow Obsidian.  Iron and magnesium give obsidian it's color.

5 7/8" x 4 1/2" x 2"

$15.00
OCEAN JASPER
(CRYPTO-CRYSTALLINE QUARTZ - SILICON OXIDE)
from MADAGASCAR

7 1/4" x 5 1/4" x 3 1/4"

$20.00
SANDSTONE
from UTAH

Sedimentary rock most often composed of quartz and/or feldspar.

7" x 4"

$10.00
DUGWAY GEODE
from UTAH

Geodes with spherical shapes are the result of trapped gases that form cavities and millions of years of ground-water circulation that allowed minerals to precipitate into the cavities.

3 1/4" X 3"

SOLD