Helenite is glass made from fused volcanic dust from Mt. Saint Helens. Approx. 0.75" diameter Please note: each marble is unique and contains minor imperfections. Surfaces are not completely smooth.

This loupe provides an impressive 30x magnification, perfect for examining microprint details on dollar bills, inspecting jewels, or reading the fine print of your cell phone contract. A must-have for any geologist in the field.    

Bismuth is one of the most impressive elements. The crystal structure and colors never ceases to amaze. Priced by weight:Small:  10–29g Medium:  30–49g Large:  50+g This listing is for one bismuth crystal. Photos are representative of what you will receive. Please allow...

Originally made famous by Admiral FitzRoy, the captain of the HMS Beagle which Charles Darwin made his renown voyage upon, this sealed glass contains a solution that can form various crystalline structures, even filling the glass at times. This behavior...

Geodes are hollow rocks that often contain mineral formations. As with many geological formations, geodes often start with volcanic activity. But the geode is not formed by the volcano itself, but rather a void that it leaves behind. When lava...

These Campo del Cielo meteorites fell to Earth 4,000–5,000 years ago in  Argentina. They are estimate to be about 4.5 billion years old and likely formed during early development of our solar system. A great birthday gift for someone uncomfortable about...

Tektites are formed when meteors collide with Earth. The material ejected from the impact crater is heated and fused into glass. This batch of tektites are from the Australasian strewnfield, which covers the area within the blue region in the map below and...

Category: Sulfate mineral Formula: CaSO4·2H2O Mohs scale: hardness 2 Luster: Pearly Streak: white Specific gravity: 2.9 Approximately 6” in length. As with all natural formations, photos are representative of the typical selection, please allow for slight variations.

The state rock of Oklahoma, Rose Rocks are also called baryte roses since they are made of baryte. Appearance of individual pieces vary. All pieces were created in nature and therefore no two are identical.     More info: Rose...

One Sumatran amber specimen for your fossil collection. Images are representative of the specimen you will receive.

 Further information: Fluorite is the mineral form of calcium fluoride, CaF2. It belongs to the halide minerals. It crystallizes in isometric cubic habit, although octahedral and more complex isometric forms are not uncommon. The Mohs scale of mineral hardness, based...

One goniatite fossil displayed in an acrylic case. A perfect addition for your fossil collection.        Images are representative of the specimen you will receive. Larger specimens are prioritized first.   

Size Range: 1"-2.5" The pictures are an average representation of what you may receive. Larger specimens will be prioritized first.   

Size Range: 1"-2" The pictures are representative of the specimen you may receive. Larger pieces will be prioritized first.

One coprolite fossil proudly displayed in a gift box. A perfect addition for your fossil collection.   Please allow for variation as each specimen is unique. 

Size Range: 1"-1.5" The pictures are an average representation of what you may receive. Larger specimens will be prioritized first. 

These green crystals are olivine. If you were to choose a representative mineral for Earth, this would be a good choice since olivine is the most abundant mineral in Earth's mantle. Over 50% of the planet's subsurface mineral makeup is...

The pyrite in the photos are representational of one you may receive, please allow for slight variations. FURTHER INFORMATION: The mineral pyrite or iron pyrite, also known as fool's gold, is an iron sulfide with the chemical formula FeS2 (iron...

 Since the 1500s, Brazil has been the world’s foremost source for tourmaline, this jet black crystal. Tourmaline is actually a large group of minerals with a common crystal structure and physical properties, often identifiable by long, columnar crystals. Different colors...

If you've got to give someone coal, give them premium coal. Anthracite is a form of coal with the highest carbon content, fewest impurities, and highest energy density. Basically the Rolls Royce of coals.

Streak plates are a specialty tool used by geologists to help identify rocks. In the process of mineral identification, determining the streak color is a simple step that can help differentiate between various types. To use, simply scratch a rock...

Sometimes plastic is the perfect material. This specimen collection box is an example. When you're out collecting samples of rocks or organic materials, you want something compact, durable, lightweight, and reusable. This collection box is divided into 10 compartments and features a robust...

A single Lapis Lazuli specimen for your rock collection.    Please note: These photos are representative of what you will receive. Since they are all formed uniquely, please allow for variation.