Peruvian Chocolate Calcite

Chocolate calcite is a color variation of calcite (CaCO₃) distinguished by its range of shades of brown, varying from amber to dark brown. As a crystalline form of calcium carbonate, calcite has a trigonal crystal system, moderate hardness, and an ability to take a high polish, making it suitable for decorative and architectural applications.

Gemrock applies strict ethical standards across the entire production chain:

• Ethical and safe jobs, and fair wages
• Responsible mining practices: Chocolate calcite is manually extracted by artisan miners, not using explosives or chemicals.
• Water recycling processes during lapidary production
• Zero-waste manufacturing
• Local community engagement
• All offcuts and production residues are reintegrated into secondary materials or industrial applications, ensuring maximum resource efficiency.

Only our most experienced master carvers take part in Gemrocks´ cabochon and jewelry production. Indeed, it takes many months of training to be able to produce a flawless premium-cut cabochon.

Additionally, our raw material quality standards are probably the world’s highest. As a result, only about 25 % of the rough rock coming from the mine is considered jewelry-grade.

Check our professional Chocolate Calcite Gemstone Quality Standard and avoid wasting your money on low-grade  material.

Contact us for custom production of your cabochon and jewelry designs.

If you are a jewelry maker looking for top-quality cabochons check out our stock:

As of 2025 Gemrock in cooperation with our associated gold- and silversmith Herdel SAC offers you a huge variety of top-quality crystal jewelry in gold and silver.

Apart from our designs, we offer personalized custom jewelry production for everyone (shops and retail clients). Contact us:

Gemrock processes Chocolate calcite for a broad range of products:

• Decorative objects
• Sculptural elements
• Cabochons and jewelry

Each product undergoes precision cutting, grinding, and finishing to meet international quality standards.

Chocolate calcite is moderately soft (3 on the Mohs scale) and benefits from appropriate care:

Cleaning

• Use lukewarm water and soft cloth
• Avoid acidic cleaners or abrasive agents
• Do not use ultrasonic or steam cleaning

Handling

• Store separately from harder stones
• Protect from impacts and pressure

Chocolate calcite is part of a broader family of carbonate materials. To understand its geological formation and structural characteristics in greater depth, we recommend reviewing our detailed material studies on Caramel Calcite, Manganocalcite, and Aragonite, as well as our overview of ethical mineral sourcing practices.

• [Caramel Calcite – Ethical Sourcing & Material Overview]
• [Manganocalcite – Ethical Sourcing & Material Overview]
• [Aragonite – Carbonate Polymorph Explained]
• [Ethical Mining & Zero Waste Production]

Founded in 2017 by biologist and professional nature conservationist Stefan Austermühle, Gemrock was born to be more than just a crystal wholesale business. As a result, Nature conservation and ethical workers’ treatment throughout the entire production chain are at the core of our business. We are changing the crystal industry for the better one crystal at a time.

• We do not source our raw materials from conflict areas, from mines that employ children, from drug production areas, or mining that finances genocide and civil war.
• All our gemstones, silver, and gold come from legal sources. We do not support illegal mining or shadow business.
• Our entire production (crystal carving, silver and goldsmithing, as well as jewelry production is in-house. We control 100% of the production chain.
• Gemrock employees are paid fair salaries higher than the industry average. They are hired under legal labor contracts with all legally required labor benefits. Excellent work is motivated with bonuses and our employees get a share of the company’s annual profits.
• Hiring is independent of any non-work related factors (gender, skin color, nationality, or else). Only knowledge and labor quality do matter.
• We offer our employees safe labor conditions.
• Saving water and energy, and re-using and recycling materials to the maximum is an ongoing effort.
• We constantly measure our carbon footprint and neutralize our climate impact by financing a tree-planting project.

The maximum possible transparency is Gemrocks’ most important communication rule. You can find ample information about our ethical business in our blog (on this website) and on all of our social networks. For more details on our ethical standards, read here: