Yes.
SARD
Chalcedony is silicon dioxide.
Carnelian is a translucent to opaque red-orange variety of chalcedony, a type of quartz. It typically has a smooth, glassy appearance with a waxy luster and can range in color from pale orange to deep red. Carnelian often exhibits banding or distinct layers of color.
You either meanWhat is carnelian * An orange, or reddish-orange, semiprecious stone which is a variety of chalcedony, which itself is a type of quartz. orWhat is a chameleon * A slowmoving lizard with the ability to change its skin colour.
Dark orange quartz is typically known as carnelian. It is a variety of chalcedony that ranges in color from pale orange to deep red-orange due to the presence of iron oxide impurities. Carnelian is believed to promote courage, vitality, and creativity.
SARD - translucent yellowish, light chestnut (or orange-brown) to reddish brown chalcedony, typically less intense and more brownish than carnelian. Some people, however, consider sard to be a synonym for carnelian, and in truth the boundary between carnelian and sard is arbitrary and differs with observers. Some sard on the market is dyed chalcedony and has been called sardium or sarium.source: http://www.cst.cmich.edu/users/dietr1rv/chalcedony.htm
carnelian
carnelian
Chalcedony's Color: Chalcedony can be virtually any color of the rainbow. It is commonly pale blue, yellow, brown or gray with nearly waxlike luster.
An orange stone commonly used in jewelry is called carnelian. Carnelian is a type of chalcedony that ranges in color from orange to reddish-brown and is often used to create beads, cabochons, and other decorative elements in jewelry. It is believed to promote courage, creativity, and vitality.
The orange semi-precious stone from India is typically known as carnelian. It is a type of chalcedony quartz that exhibits hues ranging from orange to reddish-brown. Carnelian is highly prized for its vibrant color and is often used in jewelry making.
Chalcedony is a type of microcrystalline quartz that is usually pale blue, but can occur in a variety of colors. It often has a waxy luster and is commonly used in jewelry due to its attractive appearance. Chalcedony is valued for its smooth texture and can be found in geodes, nodules, and as layers in rocks.