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Rocks & Gems

Pyrite - Fools Gold - Bulk Mineral

Pyrite is one of the coolest metallic minerals out there.

Item#: 10971 Age: 7+
5 star rating (2 customer reviews)

Optical Calcite - Bulk Mineral

Great image-doubling optical calcite!

Item#: 10968 Age: 7+
4 star rating (1 customer reviews)

Amethyst - Bulk Mineral

This beautiful mineral is actually quartz with iron impurities!

Item#: 10973 Age: 7+
5 star rating (1 customer reviews)

Break-Your-Own Geodes Kit

Find the hidden crystals when you open your own geodes from this fun set.

Item#: 10967 Age: 10+
5 star rating (3 customer reviews)

Quartz Point - Bulk Mineral

Neat Quartz points, made from one of the most abundant and most useful minerals on Earth.

Item#: 10970 Age: 7+

Dig Into Rocks Booklet

Small booklet that gets you started in the wonderful world of rocks, minerals and crystals.

Item#: 10980 Age: 7+
5 star rating (1 customer reviews)

Obsidian Arrowhead

Great gift for any occasion or for little Jimmy’s cowboy birthday party!

Item#: 11198 Age: 7+
5 star rating (1 customer reviews)

Chrysocolla - Bulk Mineral

Unique rock to add to your rock collection!

Item#: 11203 Age: 7+
5 star rating (3 customer reviews)

Sandstone - Bulk Mineral

One of the most essential rocks for study of geology.

Item#: 10978 Age: 7+
5 star rating (1 customer reviews)

Gypsum Rosettes - Bulk Mineral

Beautiful gypsum rosettes or desert roses. Great for geology study.

Item#: 10975 Age: 7+

Agate Slab - Small Blue

Awesome rock to show your students when teaching geology!

Item#: 11205 Age: 7+
5 star rating (1 customer reviews)

Rose Quartz - Bulk Mineral

Pretty rock for a special loved one!

Item#: 11200 Age: 7+

Orange Calcite - Bulk Mineral

Beautiful rock to add to your rock collection!

Item#: 11199 Age: 7+

Chalcopyrite - Rough Bulk Mineral

A unique mineral that will show off the breadth of your knowledge for your next science project!

Item#: 13346 Age: 7+
5 star rating (3 customer reviews)

Amazonite - Bulk Mineral

Unique rock to add to your rock collection!

Item#: 11197 Age: 7+

Star Mica - Bulk Mineral

Your eyes will be “starry-eyed” when you see this cool mineral!

Item#: 11201 Age: 7+

Fluorite - Bulk Mineral

A MUST-HAVE for the rock collector in your family!

Item#: 12300 Age: 8+

Rock Science Kit

Great kit for teaching rock classifications in the classroom setting!

Item#: 13217 Age: 8+
4.5 star rating (4 customer reviews)

Petrified Wood - Bulk Mineral

Is this really wood? Well, it certainly used to be! An essential mineral to add to any mineral collection!

Item#: 13341 Age: 7+

Amethyst - Large Chunk (2-3 inch)

Awesome item for your loved one’s office!

Item#: 11822 Age: 10+
5 star rating (2 customer reviews)

Pumice - Bulk Mineral

Pumice, a very low-density volcanic rock, the only rock that floats in water

Item#: 16401 Age: 14+

Rocks and Minerals of the USA

A great affordable rock collection!

Item#: 14024 Age: 6+
5 star rating (1 customer reviews)

Mineral Science Kit

Learn to test, classify and identify using the tools and 15 mineral specimens included in this kit!

Item#: 13218 Age: 8+
5 star rating (2 customer reviews)

Selenite - Bulk Mineral

An essential mineral to add to any mineral collection!

Item#: 13343 Age: 7+

Emerald Quartz - Bulk Mineral

This emerald quartz specimen is a great addition to any rock collection!

Item#: 14257 Age: 7+
5 star rating (1 customer reviews)

White Streak Plates - set of 10

Keep this set of streak plates on hand for rock identification!

Item#: 14233 Age: 10+

GeoCentral Igneous Rock Science Kit

Uncover the mysteries of igneous rocks with this fascinating kit!

Item#: 14161 Age: 8+
5 star rating (1 customer reviews)

Lodestone Chunk - Automagnetised Magnetite

A chunk of naturally magnetized magnetite! The rock that magnetically attracts iron, found in nature!

Item#: 15472 Age: 18+
5 star rating (1 customer reviews)

Garnet - Bulk Mineral

This garnet specimen is a great addition to any rock collection!

Item#: 14260 Age: 7+

Mineral Test Kit

Use this mineral test kit for classroom learning or as part of a science project!

Item#: 14232 Age: 10+

GeoCentral Sedimentary Rock Science Kit

Uncover the mysteries of sedimentary rocks with this fascinating kit!

Item#: 14159 Age: 8+
4 star rating (1 customer reviews)

Gems of the USA

An affordable way to get your child interested in collecting geological specimens!

Item#: 14025 Age: 6+
5 star rating (1 customer reviews)

GeoCentral Minerals Science Kit

Learn where minerals are commonly found using this awesome kit!

Item#: 14261 Age: 8+
5 star rating (3 customer reviews)

Sulfur - Bulk Mineral

Sulfur, a vital element that is used in a wide variety of manufacturing or chemical processes. It is bright yellow and often takes the odor of rotting eggs.

Item#: 16402 Age: 14+

Quartz Cluster - Small

This small quartz cluster is a great addition to any rock collection!

Item#: 14635 Age: 8+

Quartz - Tumbled Bulk Mineral

Great tumbled quartz piece to add to any rock collection!

Item#: 13661 Age: 7+

Fluorescent Minerals Collection

Use this fluorescent minerals collection for your next science lesson!

Item#: 14236 Age: 10+
5 star rating (2 customer reviews)

TV Stone - Satin Spar Selenite

Place this television TV stone on an image or printed text. WOW!

Item#: 16654 Age: 8+

Genuine Meteorite - Large 40g Chunk

This genuine meteorite is great for the rock collector in your family!

Item#: 14598 Age: 8+
5 star rating (1 customer reviews)

Tektite - Rough Specimen

An incredible geological/astronomical specimen produced under the intense conditions of meteorite impact

Item#: 16165 Age: 7+

Dendritic Crystal

Dendrite is a crystal that develops with a multi-branching tree-like form.

Item#: 15747 Age: 14+

Septarian Slab

Sample of a septarian slab mined from a concretion - a beautiful and unique geological formation

Item#: 16167 Age: 8+

Snakeskin Rock

A beautiful and unique tumbled rock formed from pebbles of jasper and quartz minerals, called a conglomerate, that takes on the appearance of snakeskin.

Item#: 16168 Age: 7+

Talc - Bulk Mineral

Talc, the softest mineral on the Moh's hardness scale, and the primary ingredient in baby powder

Item#: 16403 Age: 14+

Copper - Natural Sculpted Specimen

A naturally sculpted copper specimen taken directly from the Earth - each piece is totally unique in shape and bears a brilliant reddish-golden-brown coloration - makes a great gift or stocking stuffer!

Item#: 16164 Age: 7+

Metallic Minerals Science Kit

This exploratory kit including 9 metallic minerals and all the tools you need to learn to test, classify, and identify them!

Item#: 16615 Age: 8+

Labradorite Chunk - 1 inch with One Polished Side

1 inch specimen; when light reflects just right on the polished side of the surface, brilliant rainbow color patterns will emerge.

Item#: 16646 Age: 14+

Quartzite - Bulk Mineral

Quartzite, a metamorphic rock that is formed via heat and pressure applied to quartz sandstone.

Item#: 16404 Age: 14+

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At xUmp.com you will find a large selection of scientific products carefully curated by real scientists and educators. We sell everything from educational toys, teacher supplies for science classroom, lab equipment, science toys, science fair supplies, classroom equipment, chemistry glassware, chemistry lab equipment, physics demos, electronics supplies, robots, science kits to geeky science gifts.