Listing is for 1 pendulum. Picture is an example. Yours will be chosen to resonate with your unique energetic signature.

Amethyst pendulums are excellent for questions related to the innate energies of this stone & what it governs, and questions related to the Third Eye & the High Crown Chakras.

Amethyst
Chakra: Third Eye & High Crown
Energy: Receptive
Element: Water
Number: 3
Planet: Neptune and Jupiter
Zodiac: Aquarius, Pisces, & Aries

Amethyst is a Core Master Stone for the Third Eye Chakra. 

Body Alchemy:
Physical
Hearing, skeletal system, arthritis, skin diseases, headaches, wounds, back problems, digestive system, it strengthens endocrine and nervous systems, normalizes functioning of epiphysis and hypophysis, cleans the blood and improves blood circulation, heart, stomach and teeth.
Mental
Sobriety, chemical addictions, insomnia, nightmares, courage, prudence, strengthens memory, sharpens the mind, mild mental conditions, boosts intelligence and promotes extroversion, reduces excitability, stress relief, increases activity in the right brain hemisphere, elevates mood, meditation & peace.
Emotional
Happiness through love & Joy. Healing emotional addictions. Can help to alleviate depression in some.

Soul Alchemy:
Divine connections, astral work, dream work, lucid dream, astral projection, past life regression, prophetic dreams, spirit realm, spiritual guidance, wisdom, divination, spiritual protection, psychic awareness. Light activates mediumship, while dark activates psychic abilities.

Environmental Alchemy:

Protection from harmful outside influences, weather and snakes.

Quartz
Chakra: High Crown (Soul Star)
Soul Keys: All
Energy Keys: All
Manifestation Keys: All
Elements: All
Energy: Projective, Receptive
Number: 1
Planet: Sun, Moon
Zodiac: Leo, Gemini, Scorpio and Capricorn.

Quartz is first and foremost and amplifier and activator. It must be properly cleansed frequently. It can be programmed for just about any intention, but do program it, or it will simply amplify the energies it comes in contact with, period.

Since it is easy to cleanse, it can store information and energy, can be programmed, and will amplify energy and healing properties of other stones. It can both send and attract energy, it stimulates natural crystals in the body tissues and fluids to resonate a healing frequency.

Visual clarity isn’t very important to a quartz crystal's energetic quality and ability to amplify subtle energies around it. Clear quartz carry Projective energy, and Cloudy quartz carry receptive energy.

Quartz enhances energy by absorbing, storing, balancing, amplifying, focusing and transmitting the energy. Quartz also channels universal energy.

Contrary to popular belief, it should not be placed on any chakra, as it will just amplify any issues you already have there. It should be used with care around anyone with a pacemaker or any other type of implants.
Holding a quartz crystal in your hand, actual doubles your bio magnetic field. It generates electromagnetism and dispels static electricity.

Since it contains every possible color, clear quartz works on all levels of the being. You must program it to do these things.

Chakra
Quartz is the Core Universal Master Energizer for the High Crown Chakra.

Do not place directly on your crown chakra, this is misinformation, and it can cause nasty headaches, along with many other issues.

Body Alchemy:
Physical
Diagnostic healing, physical purification, aids in circulation, it stimulates the immune system, chronic fatigue, arthritis, bone injuries, fibromyalgia, vertigo, burn pain & blistering, skin disorders, digestive disorders, kidney disorders. You must program it to do these things.
Mental
Clarity, purification, focus, creativity, concentration, retaining information, studying and mental acuity. You must program it to do these things.
Emotional
Amplifies all emotions unless programmed to do otherwise.

Soul Alchemy:
Quartz has the ability to dissolve karmic seeds, if it’s programmed to do so. Astral travel, manifestation, spiritual growth, enlightenment, communicating with guides & ascended masters, scrying, channeling, dream recall, dream work, ancient wisdom, & spiritual purification and natural links to specific ancient cultures and past lives.

Environmental Alchemy:
Only use quartz as an environmental stone if you are very, very good at programming stones. Otherwise, you will just amplify any energy there, whether it be helpful or harmful.

It is excellent in most (but not all) grids to amplify the energy of the other stones and your intention.