Pleonaste

Add one script tag to your page:

<div data-gemfyi="entity" data-slug="pleonaste"></div>
<script src="https://cdn.jsdelivr.net/npm/gemfyi-embed@1/dist/embed.min.js" defer></script>

Embed as an iframe:

<iframe src="https://gemfyi.com/iframe/entity/pleonaste/?style=modern&theme=light" width="420" height="400" frameborder="0" loading="lazy" style="border:0;border-radius:10px;max-width:100%"></iframe>

Paste the URL in WordPress, Medium, or Ghost:

https://gemfyi.com/ko/gems/pleonaste/

Shields.io-compatible SVG badge:

![Pleonaste](https://gemfyi.com/badge/entity/pleonaste.svg)

Web Component:

<gemfyi-entity slug="pleonaste"></gemfyi-entity>
<script src="https://cdn.jsdelivr.net/npm/gemfyi-embed@1/dist/embed.min.js" defer></script>

Physical & Optical Properties

Category Semi-Precious Gems

Mohs Hardness 8.0

Specific Gravity 3.8

Refractive Index 1.78

Crystal System Isometric

Luster Vitreous

Cleavage None

Color various

Mohs Hardness

Mohs Hardness: 8.0

1 Soft10 Hard

Crystal System

Value & Market

Price Tier Fine ($500-5,000/ct)

Where to Buy Pleonaste

Blue Nile Fine jewelry retailer

James Allen Gemstone jewelry

Brilliant Earth Ethically sourced gems

Amazon Wide selection

Links may earn a commission at no extra cost to you.

About Pleonaste

플레오나스트는 마그네슘과 철을 함유한 첨정석 변종으로, 짙은 녹색 내지 흑색의 팔면체 결정이 특징입니다. 변성암과 일부 화성암에서 산출되며, 짙은 녹색의 투명한 결정은 드물게 보석으로 연마됩니다. 첨정석 그룹 내에서도 특히 철이 풍부한 변종으로 광물학적 관심을 받습니다.