Similar to carnelian is sard, which is generally harder and darker.
From the en.wikipedia.org
The names carnelian and sard are often used interchangeably, but they can also be used to describe distinct subvarieties.
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Sard agrees that housing authorities should look at alternatives to pouring more money into rundown properties in the worst of neighborhoods.
From the kentucky.com
First of all, the root of sard, present in many toponyms and distinctive of the ethnic group, is supposed to have come from the Sherden, one of the so-called Peoples of the Sea.
From the en.wikipedia.org
Hardstone carving is the carving for artistic purposes of semi-precious stones such as jade, agate, onyx, rock crystal, sard or carnelian, and a general term for an object made in this way.
From the en.wikipedia.org
The materials are mainly dark red carnelian, with agate and sard entering usage from the 3rd to the 1st centuries BC, along with purely gold finger rings with a hollow engraved bezel setting.
From the en.wikipedia.org
More examples
A deep orange-red variety of chalcedony
Carnelian (also spelled cornelian) is a reddish-brown mineral which is commonly used as a semi-precious gemstone. Similar to carnelian is sard, which is generally harder and darker. (The difference is not rigidly defined, and the two names are often used interchangeably. ...
A variety of carnelian, of a rich reddish yellow or brownish red color; Any of various brownish red earth pigments formerly used in cosmetics and painting; has more yellow, hardly any blue (see puce), is lighter than russet and darker than traditional carnelian
Is a semi-precious stone brown to brownish-red, transparent to translucent variety of Chalcedony (Agate). When it grades into brown it is known as Carnelian. When it contains straight, parallel bands of white or black, it is known as Sardonyx. Hardness=6.5-7, S.I.=2.6, R.I.=1.564-1.660.
A variety of chalcedony that is light orange to brown, opaque to semi-translucent. Seen often in hard-stone cameos.