What are the key differences between Pyrite and Marcasite?

Compare Pyrite and Marcasite side by side on Lunoo to see detailed feature differences, AI scores, and expert analysis.

How are Pyrite and Marcasite scored?

Pyrite has an AI score of 3.8/10 and Marcasite has an AI score of 5.7/10. Scores are based on category fit, feature coverage, pricing signals, public reception, and recency.

Pyrite vs Marcasite 2026 - Compared

Pyrite

Marcasite

WINNER Marcasite

Marcasite edges ahead with a score of 5.7/10 compared to 3.8/10 for Pyrite. While both are highly rated in their respect...

Marcasite edges ahead with a score of 5.7/10 compared to 3.8/10 for Pyrite. While both are highly rated in their respective fields, Marcasite demonstrates a slight advantage in our AI ranking criteria. A detailed AI-powered analysis is being prepared for this comparison.

emoji_events Winner: Marcasite

verified Confidence: Low

description Overview

Pyrite

Pyrite is a common iron sulfide mineral with the chemical formula FeS2. It usually crystallizes in the cubic system and is recognized by its metallic luster and pale brass-yellow color, which give rise to the name fool's gold. Pyrite is harder and more brittle than gold and can occur in igneous, metamorphic, and sedimentary rocks. It has been mined as a source of sulfur and has also been cut or po...

Marcasite

Marcasite is an iron sulfide mineral with the chemical formula FeS2 and an orthorhombic crystal structure. It has a pale metallic appearance that can resemble pyrite, but marcasite is less stable and may deteriorate when exposed to moisture or air. The name is also used in jewelry contexts, where small faceted pieces of marcasite or, frequently, pyrite have been mounted in silver settings, especia...