# sewardite

> English word · Noun

## Definitions
1. An orthorhombic-dipyramidal mineral containing arsenic, calcium, hydrogen, iron, oxygen, and zinc.

## Etymology
From the surname Seward + -ite.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/sewardite