Dalmatian Jasper
Dalmation jasper is a stone that lessens or removes disillusionment. It helps one to see their strengths and weaknesses, and encourages grounding both with the Earth and in reality. Dalmatian Jasper increases loyalty and is beneficial for long term relationships. It brings a sense of fun to one's life. Physically it can help purify the blood. It is a stone of protection from nightmares, depression, and negative thinking. It is also particularly beneficial for healing people who have trouble relaxing and having fun.

Danburite
Danburite is associated with the crown chakra and also can enhance the functionality of all the chakras. Danburite amplifies the properties and effects of other stones. It will open and release energy blockages, assisting healing on all levels. Thus it is an excellent healing stone. Danburite is also helpful in strengthening clarity and perceptiveness. It also lessens issues of self-pride as well as diminishing blockages.

Desert Rose
Desert Rose is a variety of Selenite. It is a stone of the mind, as well as angelic stone. It is said to bring mental ability and clarity, as well as perception of all kinds, including intuitive perception. Desert rose is used in crystal healing to quiet worries and still the mind from distractions and disruptions. Metaphysically, desert rose is used to dissolve "programs" we have put upon our selves that are outdated or over-used. It is helpful for strength in meditation and affirmation. It is said to be helpful for the spine and the skeleton in general, and for aligning the spine properly.

Diamond
Diamond is a stone that bonds relationships and enhances love. It brings longevity, particularly to relationships, balance, clarity and abundance. It can amplify one's thoughts, strengths, and weaknesses. It gives one who wears or carries it courage and hope. Historically, crushed diamond has been used as a cure for many ailments. Diamond is associated with the crown chakra.\

Dichroic Glass
Dichoric glass was originally created for the space and laser industries, and was developed extensively by NASA. The word dichroic means "two colors" because of the two or more colors that the glass reflects and transmits. Dichroic glass is said by some to have no metaphysical properties. However, as everything has an energy vibration of some sort, which is what gives a material its metaphysical properties. Additionally, the glass is made with metallic oxides which would bring their properties to it. Intuition says that dichroic glass can be helpful for seeing past illusions, communication with stellar beings, bringing child-like joy into your life, and meditation. It can certainly be used effectively as a focal point in meditation by staring into the layers of color of the glass.

Diopside
Diopside is a stone that is green to black-green to black. It is a very creative stone and can bring creativity to the bearer. It can also help with analysis and logic as an assistant to learning. It is also said to be related to love, commitement, and the inner heart. It is traditionally said to be helpful for healing trauma, partly by bringing cleansing tears. Sometimes it's even called the "crying stone" because of this. It can help get in touch with the feminine side, which can help heal aggression and stubbornness. Physically it has been used for the heart, lungs, circulation, weakness, kidneys, muscle aches and spasms, and psychological disorders. Diopside is associated with the heart, third eye and root (base) chakras. Black Star Diopside is associated more with the root chakra than other colors of Diopside, and brings more energies of calming stress and anxiety. Diopside is also used for calming pets at times.

Dioptase
Dioptase is a stone of healing that has a refreshing energy. It can help heal in many ways emotionally, including helping get one started clearing one's issues, and releasing negative emotions. It promotes healing from abuse, neglect, sadness, and despair. It is called a stone of "Living in the Moment" because it helps one overcome these hurtful past energies and find the joy of the current moment, bring calm, confidence, and self-worth. Spiritually, dioptase is good for alignment and attunement with the spiritual energies of your choice. Physically, dioptase is helpful for heart burn, physical heart problems, meniere's disease, and deep healing in general. Dioptase is related to the heart chakra.

Dolomite
Dolomite is a gentle stone that encourages charitable actions, generosity and giving of all kinds, as well as receiving. It also encourages energetic thinking, original thinking, spontaneity, creativity, and manifestation. It can help develop stamina for dealing with hyperactive people. It is also used to stop energy leaks from the chakras, and to balance and align the chakras. It stabilizes both human and mineral energies, and when placed strategically in a home with other minerals they balance the energetic atmosphere. It is a particularly good stone for relieving sorrow, and soothing hurt, loneliness and anxiety. Sometimes it is called the "herb" of rocks. In the physical realm it is also beneficial for strengthening bones, teeth, muscles, and the female reproductive system. It reduces the effects of PMS. Pink dolomite is also particularly good for insomnia.

Dumortierite (Blue Quartz)
Dumortierite (blue quartz) enhances organizational abilities, self-discipline and orderliness. This enhancement is believed to be due to the effect it can have of balancing the throat chakra and enhancing communication between lower chakras/physical energy and the higher chakras/mental/spiritual energy. It highly reduces difficulties of scattered mind and disorganization. In addition, it encourages one to see and accept reality, and react to it in an intelligent manner in one's own behalf.