Rhodolite

Add one script tag to your page:

<div data-gemfyi="entity" data-slug="rhodolite"></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/rhodolite/?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/zh-hans/gems/rhodolite/

Shields.io-compatible SVG badge:

![Rhodolite](https://gemfyi.com/badge/entity/rhodolite.svg)

Web Component:

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

Rhodolite is a purplish-red to raspberry variety of pyrope-almandine garnet whose name derives from the Greek for rose-colored stone, its hue caused by iron and chromium. It is recovered from alluvial deposits in Tanzania, Zimbabwe, India, and North Carolina, and has become one of the most popular garnets in modern jewelry for its vivid pinkish-red tones. A high refractive index, strong brilliance, and characteristic freedom from visible inclusions make rhodolite a highly desirable gem, while its Mohs hardness of 7 to 7.5 supports regular wear. As a natural, untreated garnet, it owes its color entirely to its composition. Crystallizing in the isometric system with a refractive index near 1.76 and a specific gravity of about 3.84, rhodolite is most often faceted to showcase its brilliance.

Physical & Optical Properties

Category Semi-Precious Gems

Mohs Hardness 7.0 – 7.5

Specific Gravity 3.84

Refractive Index 1.76

Crystal System Isometric

Color various

Mohs Hardness

Mohs hardness of Rhodolite shown against the ten reference minerals, from talc (1) to diamond (10).

Mohs	Reference mineral	Rhodolite
1	Talc
2	Gypsum
3	Calcite
4	Fluorite
5	Apatite
6	Orthoclase
7	Quartz	●
8	Topaz
9	Corundum
10	Diamond

Crystal System

Value & Market

Price Tier Moderate ($50-500/ct)

Where to Buy Rhodolite

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.

Treatments

This material is reported by G.V. Rogers (unpublished observation) to change from purplish color to a hessonite-type brownish color on heating. A brief check confirmed this change at about 600�C in some rhodolites, but not in others; it could not be reversed by gamma irradiation � Nassau (1984) 7 to 7.5Herve Nicolas Lazzarelli, Blue Chart Gem Identification (2010) More from other references 3.84 +/-Herve Nicolas Lazzarelli, Blue Chart Gem Identification (2010) More from other references 1.760 +/-Herve Nicolas Lazzarelli, Blue Chart Gem Identification (2010) More from other references IsotropicHerve Nicolas Lazzarelli, Blue Chart Gem Identification (2010) Anomalous double refraction Red, brownish-red, violet-redUlrich Henn and Claudio C. Milisenda, Gemmological Tables (2004) (Dark) redHerve Nicolas Lazzarelli, Blue Chart Gem Identification (2010) Reddish purple, Fe2+ in distorted cubic coordinationW. William Hanneman, Pragmatic Spectroscopy For Gemologists (2011) TransparentUlrich Henn and Claudio C. Milisenda, Gemmological Tables (2004) IsometricHerve Nicolas Lazzarelli, Blue Chart Gem Identification (2010) Orientied rutile needles, apatite, undulatory extinction - Gemmological Tables, Ulrich Henn and Claudio C. Milisenda, 2004, p 25 Rhodolite information at mindat.org Kenya  Barot (1993) Mozambique  J. Marques (2009) Sri Lanka  G. Zoysa (2009)

About Rhodolite

玫瑰榴石（紫红榴石）是镁铝榴石-铁铝榴石石榴石系列中一种颇受追捧的紫红至覆盆子红品种，名称源于希腊语「玫瑰色石头」，颜色由铁和铬元素致色，色调比铁铝榴石更为鲜艳紫红。玫瑰榴石最早于美国北卡罗来纳州（梅肯县，Cowee Valley）发现，目前全球主要产地包括坦桑尼亚（姆贝亚区、鲁本戈区）、肯尼亚、津巴布韦、斯里兰卡和印度。玫瑰榴石以其美丽的玫瑰紫红色、良好的透明度和较少的包体在石榴石中属高档品种，折射率约1.745至1.775，摩氏硬度7至7.5，刻面石光泽明亮，是宝石市场中颇受欢迎的彩色宝石之一。