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Collection of minerals and fossils
Articles on mineral and fossil collecting sorted by theme in Mineraltown.com

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Guatemalan Jadeite

Guatemalan jade occurs in a wide variety of colors. Among the most prized being lavender, referred to as lilac or \"lila\" in Spanish, and blue.

Guatemalan Jadeite

Guatemalan Jadeite

Barrerites from Alaska

In the Mineralogical Magazine 1975, Vol. 40. P208 this mineral was declared a rare variety of the Zeolite family and named Barrerite in honor of Richard M. Barrer of New Zealand.

Barrerites from Alaska

Barrerites from Alaska

Hypersthene

Metallic looking bands vary greatly from one stone to another. Thin, thick, straight or curly waves can be seen. Anything is possible!

Hypersthene

Hypersthene

Finnish spectrolite

Spectrolite is a semi-precious gem stone that belongs to feldspars. It is only found in south-eastern Finland in a condense area and in very tiny pockets scattered around Finland.

Finnish spectrolite

Finnish spectrolite

Large celestite crystals

The original cave was much smaller than what is shown today, as much of the celestite crystals were mined for the manufacturing of fire-works.

Large celestite crystals

Large celestite crystals

Giant Selenite Crystals

Deep below the surface of an isolated mountain range in Mexico sit two rooms of splendor: translucent crystals the length and girth of mature pine trees lie pitched atop one another...

Giant Selenite Crystals

Giant Selenite Crystals

Blue amber

Blue amber is found in the mountain region north of Santiago de los Caballeros. Just to give you an idea, let's take a trip to a Dominican amber mine hidden away in a foggy little tropical valley.

Blue amber

Blue amber

Diamond formation

Diamonds form between 120-200 kms or 75-120 miles below the earth\'s surface. According to geologists the first delivery of diamonds was...

Diamond formation

Diamond formation

Petrified Wood

Eden Valley petrified wood was formed from plants living about 58 million years ago (Eozän Geologic age). The rock exhibits features not found in fossil wood anywhere else in the world.

Petrified Wood

Petrified Wood

Chlorastrolite

Many flows contained a large amount of gases that left voids in the basalt when lava solidified. It is in these voids (or amygdaloids) that native copper was deposited, and agates, datolites, prehenites, thomsonites and chlorastrolites formed.

Chlorastrolite

Chlorastrolite

Scenic Stone

Scenic stone is found on Haida Gwaii, also known as the Queen Charlotte Islands. When properly cut and polished, this stone reveals a naturally created landscape picture or scene. Geologists describe scenic stone as oxidation fronts in rhyolite rock.

Scenic Stone

Scenic Stone

Some NJ Fluorescent Minerals

These pages show fluorescent minerals from our collection. Living in New Jersey, we chose to concentrate on fluorescents from our state. Most come from the Franklin and Sterling Hill Mines.

Some NJ Fluorescent Minerals

Some NJ Fluorescent Minerals