A Bakerâs cyst is also known as a popliteal cyst or synovial cyst. It is a soft, fluid-filled lump that forms on the back of the knee. The lump is sometimes mistaken for a blood clot.
Geodes are typically agates. Agates are very common stones, and usually do not fetch a high price, but they are gorgeous to look at. Geodes in particular can be quite incredible, because they are like little miniature caves. On the outside, they look like plain, rough stones.
  Geodes are common in the U.S. states of Indiana, Iowa, Missouri,  Kentucky and Utah, and the countries Mexico, Brazil, and Namibia. 1  All about Crystal Geodes A crystal geode is a plain-looking rock on the outside.2  When you split it open, a hollow rock with a crystalline structure is inside. Answer   No. The term geode is used to refer to a cavity or vug in sedimentary or igneous rock that is lined or completely filled in with mineral deposits or crysta â¦ ls. These deposits are formed from the mineral rich water that enters the cavity.